Look under a step van, I believe that there are a few of those with 8 lugs, disc brakes, and I-beam axles.
There are lots of step vans with the 5 and 10 lugs on 7.25" circle, and lots of them with that bolt pattern or the 8 lug pattern that are independent fronts.
And I am reasonably sure there is an 8 lug I-beam front, I too am looking for one.

They would have to be narrowed to work, but that is doable.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-