If you have the money, go for 3DS Max 2014 and get the P3D V1 and V2 SDK kits. Also Photoshop CS6.
I believe you can now rent these monthly.
You can get your hands dirty with trying this out by using Gmax, which is an ancient, very basic version of 3DS Max.
Roaming through YouTube will also show you some things about how to make parts and map them in the various programs, like Max, Gmax, FSDS, Blender, etc.
By the way.... It takes quite a long time to really make headway on how to make all the parts; animation, gauge code, part code for object animations, creation of artwork for things like panels and seats and things, airfiles tuning, etc, etc. You don't just hop in and start kicking out planes. Its a lot of learning that you will have to do. If you were a team member, then you could reduce your work load to just one thing, let the other team mates handle other aspects.
EDIT: But man is it addictive...
