Ok, here goes, decided a couple of quid may be worth spending (whether I have it or not!) and Skids reckons he can sort a spacer to fit old spindle and forks

(as does Nick B)
light weight wheels
ally swingarm
condition and looks not too worried about, just needs to be usable without any additional work
got to be worth at least 2 seconds a lap
also looking for an ally engine bolt kit if anyone has good (cheap) source
any other quick easy changes??