RE: learning on Sim.
I also have my own field but the landing area is bumpy so, only my electrics with no landing gear work great.
As far as 3D, I'd get one of the foam electric models with a brushless motor and practice with that.
If you dork it, you out the amount of probond or epoxy gluing the foam back together or the $35 for a whole new
plane. You do it to your glow model, it will OUCH big time!!!
Dave...