doing the gear mod is pretty easy I moved the gear forward for the floats I installed.
I made a flat spot using 1/8 ply, reenforcing with some 1/4balsa stock at the contact areas in the fuse forward of former #3, and used hardwood blocks, threaded,and hardened with CA, for 1/4-20 nylon bolts,I used 3 of them to mount the aluminum 60-size great planes gear.
the gear is actually backwards to mount the floats and get the proper CG but for a ground based T-dragger I can shift the reciever and battery rearward and it should be fine it took a little surgery with the razor saw you just need to be carefull not to over cut and remove just enough to build the gear mount.
a couple of shots of what I did.
the side view is a bit blurry but if you look through the hole in the fuse you can see one of the nylon bolts sticking up, thats holding the gear in place and the recovering job just started,as well as the new mount I needed to use for the OS 61fx engine.