* Nice plane, my boy has had one for a couple years. I use once in a while when the weather is bad. I did all of the above. Converting to a taildragger is easy. Get around a 1/4 inch piece of plywood and cut it to fit inside the fuselage right where the front of the wing goes in. Do this before you install the fuel tank.
*Epoxy to the bottome but make sure to glass to the sides. Also a minot trick to this is to use Nylon mounting bolts . If you go off into the weeds the bolts will break off. If you use steel and go off into the weeds, the gear and the whole bottom of the fuse will rip right off.
*you can use standar aluminum gear which you see on alot of trainers. Most shops carry it.
* I flew mine with a TT46 pro for a year and it now holds the TT61pro and 11/8 pro. Everything is fine
The tail wheelis easy too. Get thatkind that just mounts to the bottom and there is a piece of wire you bend into the rudder to steer the wheel. I glued a piece of hardwood to the fuse, then screwed on the tailwheel assembly. It is alot easier than it sounds
Nice plane. I put over 200 flights on that thing before i recovered it last year.