When I called them the other day the quote I got for a modified 2.25" Jett was $41.45. $63.90 with adaptor. I can't believe these things can get so expensive.

Have you looked into just getting a truturn prop hub http://www.truturn.com/cgi-bin/store...exact_match=on ?

Sort of a compromise, but at least there wouldn't be any issues with prop size.