You can't just buy the se/sp caps for the R forks. basically the whole for is different. Suspension is most important so buy the best you can.

You can probably live without the dry clutch.

If you had the money and time to find them, you could probably get away with buying special F3 parts. They were special racing bits made by Honda, but not under the regular HRC program. Rare as hens teeth though.

You might consider Magtek wheels if you can find them.

You should have no problem making the same or more power than the Aprilias.
_________________
james
Its not how fast you go...Its how you go fast.
MC21 Rothmans
RS250
RC31
CRF250X
748R
Porsche (many)
http://members.rennlist.com/j911brick/rennlist3_002.htm