Modern Vespa

hi guys,
after years of talking about it i have finaly done it, earlyer this year i managed to get my hands on an old v90 (frame only) which was in need of some love and attention. i got hold of a pk 50 engine (i think) which i have been told will fit in ok .
well the frame has finally been painted and looks the nuts and now its time to rebiuld her and get her on the road.. can anyone help with regards to the wireing do you knowe were i can get a loom or will i be able to make one up my self any hints tips or addvice on this or anything you think mite help me out will be greatly recveived

many thanks

you're in UK right? why don't you try local store? a lot of online store over there
IMO PK engine is basically 12V electronic version of V50/V90 engine
cheers