Starting off with light loads is a good plan. If you reload I would get 44 magnum brass to start out with, and load light loads and work up. I would probably start loading with Unique powder and a load of around 850 fps till you get comfortable shooting it. I would switch to H110, Win 296, or AA#9 and a 240 Soft Point when you feel ready. You can work up with the slower powders also.
No mention of optics, so I am presuming you plan on using open sights. In Tennessee you are probably hunting in the woods for whitetail. I think you will discover with a 4-5/8" barrel you will limit your shots with open sights to around 50 yards. A short barrel open sight handgun has about the same comfort range as a Hi Tech compound bow. At 25 to 35 you feel good about the shot. At 40 to 50 you need to bear down and not mess anything up to make the shot.
Where I am hunting I would normally set up in a Tree Stand or Ground Blind with about a 35 to 40 yard shot as the plan. You should have no trouble with a short barrel at that distance with some practice. I also like to walk about some after season gets going a couple days. You can get into longer shots when stalking about. You just need to know when to hold um, and know when to fold um. If it is out of your comfort zone let it walk away.
With an open sight SBH holsters are not a real big issue. I would probably go with a belt holster.
With a scope you will need to see what is available.
If you are looking at installing optical sights at some point, I would go with either a 2X scope or a 30mm Ultra Dot.
If you have a good reason to keep this gun, enjoy and get good with it. If it were me, I would keep saving and looking and get a longer barrel gun. Also if you get a chance to shoot a Super RedHawk do so. I think you will discover the big gun with cushion grips is not nearly as punishing to shoot.