KM, the kit you saw was a voyager kit. you make no mods to the bike with that kit and can go from 2 wheel to four in minutes.
I am going to do a true trike conversion. I agree with scoop, I think it'll be easier to use a shaft drive bike and mod the ujoint.
hyper and ccspinner, thanks for the pictures. I'm sure they will help. the donor bike I am going to use is a 2000 with 14K on it. I bought it for $1,500 so I didn't pay a lot for the basic bike.
now to hit autocad and come up with my concept. BTW, I can come up with a miata rear end for free so I'm going to see if that'll work
new tires (OEM Stones) 6/2008
home made floorboards (knifemakers styling)
stator replaced 6/2008
cobra slashcuts 7/2007
clear alternatives brake & tailight 8/2008
Added Mutazu hard bags 3/2009
added customLED load equalizers for the bags LED lights 3/2009