Will a 82-84 R100 rear fender fit a 82 R65 ? I saw a mod of a cut down stock R65 fender I liked...not wanting to carve up the original stock fender...and a post of a R100 fender for sale...I realize the R80 has a longer wheel base than the 82 R65 and that got me thinking...just getting into the airheads and am not familiar with the interchangeability of the parts... any comments will be appreciated...Tinkertoy