Been tinkering around with the rear profile, and managed to get the rotor far enough away from the frame, but had to shim the caliper a bit.
Should be ok, chain lines a bit shabby though. Need to sort out the cranks / bash / sprocket combo, add in some more spacers to make the chain line better.
And Dave, yes I know. I'm really not digging the jewish racing gold. WIll be sprayed soon enough.