Thank you all - I greatly appreciate the information and suggestions - very helpful!
I've decided that I will go with the full frame size (P) as it just makes good sense to me. I'm used to shooting a New Vaquero and a Uberti Bisley and I can't really see switching to the junior frame size when I think the balance that I'm used to would be better as well as less muzzle waiver on the heavier frame.
I was able to pick up a NIB set of RCBS 32-20 "cowboy dies" at a really good price - much less than retail. A fellow had them and never used them - was eager to get rid of them so at least they'll be pretty to look at when I'm using them!
I already have a couple of molds that will work fine in that cartridge - one is an original Winchester mold - not a pristine cavity but does drop a decent bullet. I've lined up some 1 X fired brass from a fellow who is willing to help me out in getting set-up to load.
Now . . to locate a pistol! I'm going to look out here in Tucson to see if I can find a used or new one anywhere and if not, I'll call back to MI to the LGS that I use and have them put an order in - might be backordered but at least I'll be on the list!
I have two goals for 2015 - the 32-20 and the other getting set up for 45 Colt. I've put the 45 off for too many years - not getting any younger and it's on my "bucket list"! That one will be a Uberti SAA for sure.
Thanks again for the help and information - it's greatly appreciated! Smooth trails to you all!