Firstly thanks all for your classic mechanic suggestions - all noted and filed.
I was looking for somewhere local and about to give up when a neighbour mentioned that there was an “Old bike garage” near his work in Ferndale Rd SW9…Just round the corner from me.
Brixton Motorbikes (not to be confused with Brixton Motorcycles who make Chinese 125cc Retros)
Went and saw the place - guy who runs it interested in doing my bike as they do servicing but their main focus is custom jobs,theyt have just moved in to nice big clean workshop ( 4 stands ) so I might cut to the chase and use them.
They have been around for 5 years at their old Brixton address…anyone know or used them???