there were only four of those frames made, right? I'll see if I can find two of them.
Got to use stock frame, swingarm, triples, forks and hubs.
That leaves bolts, rims, spokes, axles, backing plates, brake arms, sprocket, levers, handlebars, pipe, tires, tubes, seat base, fenders and tank as the items that can be lightened. The skid plate, oil pump, oil tank, air-box and steering stabilizer have all been removed. I'm running a Hooker pipe, Renthal bars, lightweight controls (levers, throttle), plastic fenders and an aluminum sprocket. I'm adding Excel rims and HD spokes, which should drop the wheel weight by 1.25 lbs per wheel. Aluminum, titanium and the drill could reduce weight a little more.