Suspension confusion.

[economiser]

After removing the front springs, assembling the rest of the front suspension, assembling the "new" rear axle, and measuring, I find there's no space for wheel adapters, and no way to change the lug circle of the front hubs, except to replace the 4-lug with 5-lug, which is necessary for big brakes anyway. But I'm already over budget, so I'm thinking just order front wheels. Only I can't make that match without going 5-lug.
So I found a pair of '01 Mercedes S430 Brembo calipers for $ 110 / pr, delivered, including everything, even the used pads. Next was figuring out rotors, and after 2 hours on Napa's website, I found some 11.75" x 1.25", 5 on 4.5, with a large enough center bore, and less than 0.010" too much height.
Anyone wanting to copy this, the rotors are part number NB4885743. And only $ 54 each! Now I'll have to fab some caliper mounts to adapt them, but that's ok.