Sunbeam Specialties
I agree , Rick sells them now for a much better price. I have fondeled them in person and they heavier but visibly correct except for the glossy paint, but that's fixed easy. I think Rick had them priced at 450 or 495.
I don't recall looking for the fill to tab as in late MK1a or MK tube but it'd be easy to pick one out or make that . It's super easy to resolder a tank.
I know sellers that have sold them for 600, 800, and 1000 to needful Tiger owner's.