RE: Removing Glued Platform
Only real way is to carefully cut the parts free, sand the area's where the glue remains and then replace the wood that was removed and start putting the pieces back together again. Might be helpful to you if you had someone with more experience show how to fix this problem. Talk to some of the guys at your local R/C club or hobby shop. I'm sure that they will be helpful. This is a great hobby and have yet to come across someone who wouldn't offer a helping hand.
Cheers,