RE: GP Big Stik 60
Obviously, you will have to add a tail wheel.
My plans simply show two locations for the aluminum legs. All you have to do is reposition the gear forward of the CG. I can check the precise location if you need me to. You may also have to add some ply bracing inside fuse to support the gear. IF yours is the ARF version, it may already be beefed up. I'm not familiar with them.
keith