Perhaps this will help -

5 on 5-1/2 (139.7 mm)
AMC - Jeep (5 bolt) '42-'89
Chrysler - 8 cyl. & wagon '46-'55
- Imperial '54-'66
Ford 2 ton van
Ford Bronco, F100
Ford - all '28-'48
- full size P.U., van, Bronco '49-'89
International Scout, Travelall
Lincoln - all '52-'60
Mercury - all '39-'51

Most are 15's, but the Imperial had some 14's.
Just need to do some scrounging.

Check with the custom wheel makers like Stockton Wheel.
They can set you up with a nice set of wheels for not too much.