I banged up the nose wheel on my trainer until I got the hang of flaring to land on the mains.

Anyway, you would want the mains a few inches forward of the CG. Not familiar with that model, but I would assume you would have to strengthen the fuse to mount the mains, and the tail wheel.

I converted an Advance to tail dragger. I cut out the balsa sheeting under part of the fuse and replaced with plywood, and added some gussets inside to the sides, along with some balsa to tie the main gear mount area to the battery tray. You may have a servo tray you could tie things into?

Dubro makes some nice tail wheel brackets that work well for conversions.