I can't comment on 1 or 2, but if you really want an MT2 tailstock it wouldn't be hard to make one.
I wouldn't make one from scratch though... An MT2 shank is 0.225" wider at the "major diameter" and 0.413" longer than an MT1 shank. If it were me, I would first measure the "quill" of the tailstock. if you have enough extra material it is real easy, put an MT2 reamer in your chuck, position the tailstock right in front of it with the quill retracted. (you may or may not need to yank off the carriage, I don't know if you'd run out of room or not) Then apply lots of cutting fluid and slowly advance the quill into the reamer. all done....
If you don't have the extra material on your stock quill, I would turn a new one with a bit of extra material on the front end and then just install it in your existing tailstock.