Well, I've got lots of colorful old magazines to use or even some rosin-paper (and even an arch-punch set) but I'm thinking I'm gonna go with just RTV using the partially-cured-bead method. My reasoning is that all four of the rear hubs were weeping oil slightly at that joint, from well before I decided to pull all the wheels for some major brake work. On investigation (pulling the drive hubs), all the paper gaskets were brittle to the point where I could only get one out whole, and likely all the others were cracked through before I got to them.
In retrospect, this all seems as it might be expected to be: there's no sealant, a nonresilient paper gasket, and some huge adjacent stresses, which collectively seem like a recipe for leakage. Even if it's just an annoying weeping, it seems unnecessary. Past experience disassembling similar joints that I had made with RTV in lieu of a gasket resulted in some very thin, intact, consistent-thickness RTV versions of the gaskets I would have otherwise had to make out of paper - and not had the speed, flexibility, nor sealing qualities of the RTV. I don't see a downside other than that it's not a "traditional or authentic" method, if that's of concern.