40 ultrastick as a trainer
My son and I both started on a Hobbico Superstar 40 with an OS 40 engine and the four channel radio that came with the ARF kit. We also used a flight sim. which I think is more important than choosing the stick or a trainer. I can't recommend getting a flight sim. enough. Stick time, stick time, stick Regardless of the weather, availability of an instructor, time of day or wind conditions. You can always use the flight sim.
If you go with a stick then you are most likely going to want to go with a bigger engine than an OS 40 or something similar. This has the potential for problems in the beginning. My son and I both thought the trainer, with the OS 40, had plenty of power when we first started. Yes, it wasn't long until we wanted something faster with more power. Like anything else, speed before you are really ready can be the one thing that puts you in the ground, losing the money you thought you were saving by going with a more advanced plane with more power. We took good care of our trainers, sold them both without crashing and then went to the Hanger 9 Ultrastick 40 with a programmable radio. We also used an OS 46 FX for power. Wow! We loved this plane and the added power which resulted in more speed.
One final thought. If you can fly a trainer well by doing all the basics, do acrobatic maneuvers and fly level and straight inverted then you are ready for a stick. IMHO, the stick is a great second airplane after you have the basics down. After seeing how my son and I did going down this path, without losing an airplane, I would have to encourage a high wing, 40 size trainer with nose wheel and the OS 40 for power. Very reliable airplane, great to learn on and most important, fun to fly for (beginner skill level).
You have to make your own decision. Just thought I would respond having just gone through what you are going through. Good luck.