I just got hold of one of these. For its age it's in reasonable condition, and it seems to shoot well. In spite of that, I'm thinking it could probably do with a service and clean up, just to make sure all the internals are in good order, does anyone have a recommendation of who to speak to, and a guestimate of cost? I don't want the outside touching, the scuffs and marks in the blueing are all part of its history.