thanks everyone for the comments
Albie..thanks for pointing out the rear brake, now sorted (one of those "oh,I'll do that tomorrow" things, new bracket and now looks less scary..) on the pipeline the usual suspects: ohlins rear, hi-comp pistons, st2 cams and a conversion to later models forks. I also picked up a tank for a tenner on e-bay, and I see what I can make with that.