Colin Smillie, at Pathhead. His paint shop is just off the A68, about 20 miles south of Edinburgh. He is quite reasonably priced. I've had tanks (not Vin) done by him: very good job, ready inside two weeks (and free carriage via the VOC Freight Company). It seems he has become Scotland's "Vin tank job go-to man", and I've heard nothing but praise. I've seen one of his tanks, and it was complete with transfers and gold lining. It certainly looked right, although I didn't measure.
Telephone is 07885 196 559.
(Evidently his fame has reached the deep saff too!)