RE: Looking for 40 size 3D plane
There are several great 40 size profile planes that are made for 3D. Most are inexpensive and fairly durable. Take a look in the Fun Fly forum to see if it is something you would like. I got an Extreme Flight Edge ARF a couple of months ago and I love it. Don't let the giant control surfaces scare you. If needed start with mild throws and turn them up as you get comfortable.
Eric