Congrats on the "new" Redhawk. I have its twin in blued finish, bought new in around '93.
Even though I'm a small guy at 5'5", I've never been too bothered by the 7.5" barrel, but because I'm cursed with short fingers, I do struggle a bit with the grip size and trigger reach. A GP/SRH style grip frame on the RH would be ideal, IMO.