Thank you for your reply,, yes, i looked into it, it seems a bit of work involved to get a v5c for the original registration, i have to take pictures of the bike, get them signed by a civil servant of sort, send them, the original registration docs with a fee to the club, then i think they contact DVLA? I may place the engine into the bike just for the photos.
i have decided to get the bike a new set of WIDE trail tyres, and get the engine running, replacing all the old electrics, keep the rest pretty much original, (original patina)!!
The frame has been properly painted, although the previous owner seems to have cut off the rear mudguard brackets, that are usually located at the rear section under the seat.