Someone is still making the wells for the Fords.
http://www.parts123.com/parts123/yb.dll?parta~dyndetail~Z5Z5Z50000021d~Z5Z5Z589866~P32.00~~~~~~~F
and here is the mount for the wheel.
http://www.parts123.com/parts123/yb.dll?parta~dyndetail~Z5Z5Z50000021a~Z5Z5Z513598~P34.75~~~~~~~F
And I'd bet my pension check that back in the day, there were enterprising body shops the made similar mods for quite a few people.
Denny Graham
Sandwich, IL