Hey Jim,
I think we may be able to help you out with all the parts you are looking for.
You saw Tam on the yellow plate bike. She finsihed I think 11th in 250SB and was top novice. I ran the RS250 in F-II. My number is 331. Didn't have a great finish, but was having fun getting used to the RS from the NSR.
With the small grids in 250SB, I will probably be bringing my MC28 back out, and just run 250SB while doing all my practice on the RS.
PM me your phone, and I can get a list of all the parts you need, and what we got.
thanks,
_________________
Charles Gallant