"Yikes!, that is one expensive seal..."
Bryan, you are NOT at the mercy of the antique car aftermarket suppliers. Seals are generic and are cataloged by size, ID, OD and thickness.
I recently changed the gearing in my '36 Chevy pickup using a '37 Chevy car rear end. While I had the rear end apart I replaced the original bushings with inexpensive OEM bushings from ebay PRIVATE PARTY sellers (not speculators/hoarders) and got a seal from a local bearing supplier.
