A version 2 sketch of my vision... This has a street tracker tail section, the numberplate/headlight idea, and an XT600 header swooping into an undertail exhaust/megaphone from dime city cycles or the like. The oil tank is up front, where the radiator would normally go. Tons of room up there, as there is no rad!
Frame and swingarm back from the sandblasters... step one is fabricating some spacers to centre the swingarm in the frame. Shoulda told them they could blast off the frame decal with no worries.
Inspiration for the headlight. Not in the same spot exactly, but off-centre as you see to the left.