RE: Tailwheel installation
Here's a couple of pics that Iused for my attempt at perverting a tri-cycle into a tail dragger. Not my plane, but used the same approach.
Icut the rear facing section of the fuse open and inserted some 1/8" ply with 2-56 blind nuts aready installed. Note that the wire for the TG is straight. Iadded a bit of a bend.
HTH