Kellly Springfield has a Safari CSR tire that looks alot like an old bias truck tire, but in a radial. Too bad you can only get it in a 16 or 19.5. Goodyear has a Workhorse tire that has a similar that I've seen, but I believe it's only available in 16 and up.
I too like the bias ply look. Take a look at "Goodyear Wrangler Silent Armor". They have a "square corner".
