If you're not going to get killed with the price (like my LHS - he's rediculous!) then support your LHS. If you have questions or problems, you can go in and talk to him, etc. It's always good to keep money local. Then you can buy just the engine online if you want.

Maybe I can help with your other question. I was gung-ho on getting a 6+channel receiver, and got a computer radio. People say you'll be fine with a 4 channel for at least a few planes, but I thought I'd want flaps, retracts, and whatever else I could add on my plane. After 10 days and 2 gallons of fuel, all I need are 4 channels. All I need for my next plane (which is on its way!) is 4 channels. You will NOT want to use any of the computer features on a fancy radio if you really want to learn to fly (like no mixing, etc.). So a basic 4ch radio for $99 is all you really need.

With that said, you will want a spread spectrum computer radio somewhere down the road if you stay with the hobby. The consensus generally is that you get the 4ch radio to start, and keep your trainer set up to fly, and end up getting a new plane, radio, engine, etc. Then you can train your friends on your trainer, and have a nice easy plane to take out if you want a break from your later sport planes.

I don't regret getting my computer radio. I have my Nexstar's settings all saved in it, and will store my Pulse's settings in it, and only need one radio no matter which plane I want to fly. And I have the computer aspect for when I'm ready (it is tempting to start using 'tools' on the computer radio before you really know how to control your plane). I don't want a plane with retracts or flaps in the very near future, but at the rate I'm going I will be wanting to take advantage of channel mixing (using multiple channels and tying them together) at least by my 3rd plane.

Maybe all I did was confuse you, I don't know. There are a lot of options. Getting a nice radio now means you don't have to buy a radio twice, and the one you're looking at is REALLY nice (nicer than mine[:@]). You can get a cheap 4ch radio, OS 46LA, and save some money now, keep that set up for when you crash your second plane or just want a nice easy flying plane on Sunday afternoon, and get a nicer engine, plane, and radio down the road (not all at the same time, and not necessarily in that order).

Make sure you use a trainer and a buddy cord - protecting your investment and investing in your fun.