Here's what you do:
First, ya get a Ruger
. Vaquero or Blackhawk, whatever you want.
Second, get a SuperBlackhawk or Bisley hammer to drop the cocking reach with the thumb down to something sane. The Ruger frame is a bit on the tall side compared to a Colt SAA. Brownell's has these cheap - less than $30 if I recall right, been a while since I looked.
www.e-gunparts.com usually has 'em.
Third, if ya REALLY wanna get trick, go to
www.powercustom.com and under "revolver parts", drool over that replacement grip frame that gives you a 100% Colt SAA size-and-shape grip frame for your Ruger
. Like that SAA feel but want Ruger strength? It's $200 away
. Plus you'll need any two-piece Colt SAA grip panel set. (NOT one-piece, won't work on the Power Custom frame.) In basic wood, those are fairly cheap ($50ish).
Plus $17 for a spring kit (might as well if yer gonna have it scattered gutted across the kitchen table anyways!) and $20 for a set of gunsmith-grade screwdrivers for Ruger SAs and you're still WAY under half the price of an SAA so long as you assemble it yourself. And the Power Custom instructions are pretty good. Splurge another $35 for a Power Custom Freewheel Pawl (cylinder spins both ways with the gate open for faster loading!) and $21 for a Belt Mountain replacement base pin to tighten the whole thing up and you're still under $700 with some careful shopping for the base gun.
There's other neat funky options for Ruger SAs, they're like AR15s in terms of parts availability
. See also:
http://www.thefiringline.com/forums/showthread.php?s=&threadid=80872
The Rugers will take factory "+P" loads that will simply detonate an SAA with one shot. Bufallo Bore has a 325grain hardcast loaded to 1,300fps, that's the hottest factory load I'm aware of. DO NOT stick that in an SAA unless you like seeing $1500+ go "blewy".