Isn't that Mustang a nitro-powered bird? Methinks you'd be better off with a big electric just for the simplicity and lower maintenance, not to mention buying fuel and such. Also, while a powerful electric brushless setup costs more up front, it is also more reliable, cheaper to maintain, cheaper to power, in some cases more powerful, lower maintenance, and far less expensive to run over a long period of time than a nitro system. You ARE going to be training to fly an electric plane, after all, and the experience may be helpful... Just a thought.

Nitro is much cheaper to get into up front and you can start out with larger planes than what you can with electrics.

In turn larger planes are both easier to control and see, and retain your interest much longer. They are better trainers, handle better in wind, and are easier to repair and maintain as you learn.

There's a reason that Nitro planes are preferred as trainers for organized training sessions.

At most clubs you need to have at least a .40 size plane, to bring to training.... so that it is adecuate for buddy boxing, etc.

You don't want 2 guys that are willing to help, you want an instructor. There are plenty of friendly people hanging out at most clubs that fly just fine that have no business instructing. Some may teach you to fly, others may teach you to crash, all will mean well. On the other hand it may be the best there is too. This is one place where the "good ol boy" network is not a good thing.

Minor repairs on some small electrics can also quickly put them above flying weight.

Hanger 9 put that out to solve the crossover idea, that is it's two in one and now you don't have to buy a second airframe. But it is effective, to a point, the only problem with it is it's still a mustang, If I fly my P-47 all dirty'd up, flaps,down,wheels down, tailwheel down, gear doors open, and trim out the balloon effect it's still a p-47, just flying at about 45 mph. bolth planes lack the inherent stability of a high wing trainer, all the equipment is located above the wing, so you loose the pendelum effect, the other problem with adding drag and turbulent producing devices to a clean design is control input gets mushy and it can induce a stall. I'm not saying that this PTS is all bad but look at it this way, if your trainer is having a hard time teaching you how to fly a crossover plane, it's going to take you longer to gain the confidence and skills to fly if the plane doesn't react to your inputs due to the drag induced devices to slow it down. Plus if the plane gets you solo'd and you pull all the training equipment off too early, you'll end up buying another plane anyway. I tell most people to get a traditional style trainer, and think of what they want to step up to next. When they can solo I suggest they buy the new plane and repeat the process with a instructor to see if the new investment is going to be too much for them. If they tell me they want a kit plane, I usually tell them to get the trainer first and order the kit right after their first few flights, that way they can step right into the second plane by the time they solo their trainer. But yes, talk to the instructors and see if they can give you a little stick time on a club trainer, that will help him understand how your lessons will go, if you can understand clearly what is being conveyed to you while your flying, your number of lessons will be less before you solo, if you have a hard time understanding what to do and how to do it, it will be a longer time before you solo. I generally keep a trainer in my stable and bring it to the field, just incase someone wants to give this hobby a try, 8 out of 10 people get involved in flying, the others find out it's way too much for them, but thank me for letting them try. Some of the ones that said not for me, actually had a trouble free flight, they just get too scared or it costs too much for them. But try to bend to the instructors schedule, and let him know that, he/she is going to be much happier to train you how to fly when he has an open schedule to teach, rather than having him/her squeeze you into the day because they have other things to do that day and there was a 2 hour window open. Your time at the field will be better spent having time to talk about your training with the instructor and taking your time, more flights per a day (like 6-8), builds skills faster than 2 flights a weekend.
I know I rambled all over the place and maybe got you a little confused or a little more excited to start, but I vote for a basic traditional trainer, with lots of lift and slow stability, The cost of a second airplane frame that can transfer all you trainer gear into is minor, compaired to the cost of another PTS mustang and componets that might be damaged in a crash.
Just my opinnion thou.

"You don't want 2 guys that are willing to help, you want an instructor. " <<<<< - EXACTLY!

Yeah, you only want to pick one instructor, not bounce between 2 guys, I remember how each student learns and flies. if I pass him off to another instructor, they may make the lessons harder because each instructor has their own method of teaching and they may not know how far along you are in training reverting you back to the begining.