I have on hold at a pawn store a very nice colt anaconda 6 inch barrel it's the rare .45 long colt. Stainless I would rate it about 98%. I can get it for 1500 How's the price?
I think you will be pleased with the .45 Colt. It is an easy round to reload and there are almost unlimited range of reloads from mild to heavy to include bullet weights.
It will certainly handle any load the Red Hawk will with aplomb. Same size frame, investment cast over forged I'll take a forged gun over cast any day. Early Anacondas in 45 Colt had throat issues but not impossible to get to shoot,45 Colt dimensions have been all over the map for years..I have a later one and it's wonderful shooter and good example of Colt quality.