John

Lifes Motors in Southport have local contacts for radiator refurbishment. They were going to use them to recondition mine but happened to have a recon one in stock which they fitted.
Alternatively Macclesfield Radiator Services are very good but you would have to take the radiator off the car for them. They did a recore on a Mk2 Jag for me a few months ago, excellent job.
Good luck

farmer