looking in the wrong direction.. i personally am looking in the smaller cc scale of swnger/fork swaps..(500cc below. for ex. aprillia rs125 250,500.. cagiva mitto 125,250.. suzuki models including gs500 is inverted.. or even buell's would work better.. would be sick..honda cbr250, everyone's automatically jumping to the 600cc bikes for swap parts. its not weight saved, nor worth the hasle of fitment.. when there is great 37mm+ inverted forks all over the lower cc markets.. lots more clip-on options,levers-bar ends.. tire,wheel,options..
same goes for the swingarm set-ups. the smaller 500cc bikes have some great looking swingarms that will have closer fitting chasis sizes/widths/bolt size(everything about it will be better) and if anything you will need a shim or two.. oh... with the suspension in the rear.. it will be far superior and 3 way adjustable no matter which way you go if you go to the europe,spain,italian market of bikes..
best of luck.. and dont forget if you change your frame in anyway think (gussets)and or (crossmember under tank and near swing arm) frame strength will help with any flex due to hard breaking with the new forks and all that 120-170 tire stoping power.. i cant wait to unveil mine.
props to flipped his concept is nice but someone needs to do it right!!!no short cuts!!!!