I haven't seen a SAA clone that is available in 32H&R, or 327 magnum. - Finding one in 32-20 was no easy task. In fact, before I ran across the Cimarron model P, I was starting to think that it would be the Colt Custom Shop at astronomical prices - or nothing.
The Ruger Blackhawk and Single-Six are available in .327 mag - but these are not SAA clones. Nice guns, but not what I am interested in.
Cimarron makes an 85% scale SAA clone called the "P Junior" that is available with two cylinders, one in 32-20 and the other in 32H&R. Cimarron model P Junior
I can just imagine carrying one of those... Somebody looks at my diminutive SAA and says, "Hey, Tex... What happened to your shootin iron, there?" - And I answer in a Pee-Wee Herman voice, "I'm packing a Pee Junior!"
"Sorry to hear about that, Tex... But - what happened to your pistol, there?"
No, I think I'll just stick with the full-size model P. A rule of thumb with the Single Action Army is that as you go for a smaller bore size, your accuracy improves as the barrel is effectively heavier. They're all the same size on the outside, no matter what size hole is drilled into them. Same goes for the cylinder.
Most just opt for an easy to find .357 magnum as has been suggested, or maybe a .38 special if you can find one, but I see the 32-20 as being superior for small game. I'd want enough of any rabbit or rattlesnake I popped to be left afterward for my dining pleasure. A 32-20 loaded with wadcutters is very accurate and effective for small game, but doesn't tear them up too badly.
Also, wadcutter reloads for a 32-20 are probably the cheapest centerfire pistol round known to mankind. It would not surprise me at all to discover that they were cheaper than most 22's.
But for self defense? - I'm kind of on the fence about that. Better than a 380, I guess.