Good summary on the wide 5 stuff available, Danny; I'd forgotten about the 356 rear drum. As he says, they are very good as well- just rare and a little expensive once you find them. I just saw online (don't remember where) that one of the Porsche restorers relines the aluminum drums. Waaay past expensive!
I looked into 944 brakes (thought the vented fronts with the big "Porsche" calipers would be cool) but that's an expensive (and heavier) option as well, and really not needed in these light cars unless you're putting huge demands (road racing, serious canyon running) on your braking system. I'd have to have a set fall from the sky to be able to afford the conversion pieces, but very cool stuff. Would look good though....Hmmm....
Back to wide 5, does anybody know- are the early type 3 rear drums bigger than the bug stuff?