I would say based on what you are trying to achieve, the xs650 forks are a perfect candidate......because the legs both have mounting tabs which are centered in the leg so both can face rear-ward. now, there's also some adapter brackets available for the xs650's now to mount up newer brembo calipers and rotors. I think pandemonium choppers is one of the places offering this. Mikesxs.net sells cartridge emulators and it's easy to source progressive fork springs. I think all of that combined will get you what you're trying to achieve in performance wiithout losing your factory triples'controls, all while bringing modern tech and appearance to the front end. Also, the early honda 6-bolt rotor pattern is the same as the xs650, so the spacer and rotor setup would work with your stock wheel and speedo/axle.
that said, I have two sets of xs650 forks, one is absolutely mint shape perfect for this....I'd sell 'em for $100 plus the ride.
I have two front xs650 rotors too if those are of interest....the kit is $60 from pandemonium, just have to source calipers.
pandemonium kit:
http://www.pandemoniumc2.com/#!parts-store/cmai/!/Pandemonium-Brake-Kit-TM-35mm-&-34MM-for-XS650/p/46227518/category=11951480
the brembo goldline calipers are found on the following models (in case you want to source a pair on ebay)
Ducati models:
ST4 2000 to 2003
ST4S 2002 to 2004
ST3 2004
748 1999
748S 2000 to 2002
748R 2000
996 1999 to2001
996S 1999 to 2001
996SPS 1999 to 2000
998 2002
998 matrix 2004
also, yamaha yzf600 rotors are the same diamater as stock xs650, and same bolt pattern. I forget if offset is the same but I can check tonight when I get to my shop. I have yzf rotors too but they aren't for sale