My problem is I'm tall 6'3" and dont really want to lower anything if I can help it..
Is it possible that my worn out Boge shocks are already riding lower than a new shorter hagons?
I apologize if I misled you. According to the web site, Hagon's twin shocks (standard) come in lengths varying in 10mm increments from 280mm (8.6") to 350mm (13.8"), and range at more irregular intervals up to 420mm (16.5") and down to 255mm (10.0"). Thus, your height should not deter you from Hagons. (I can't say how long a shock the R65 will take; doubtless, Dave Quinn's can answer that.)
Regarding "stock" length. My bike currently has nonstock 12.75" Konis on it (Stop salivating, Yikes—I haven't replaced them yet.

), and they're a skosh too long for me. A pity, for I really like the ride. In fact, I'm wavering a bit since I installed the '83 center stand, which solved a number of my problems.
John