Very nice gun. Worth much more than the asking price, IMO.
Now that you have it, don't go making it your 'one gun does all' and go modifying it. No extra beads, Bradley beads, green worm beads. No cutting the barrels or adding a recoil pad. Don't go refinishing it either. Your gun is a very good example of this model and should be left pretty much as is, IMO.
Shoot it and enjoy the heritage.
For shells, I know I've heard a lot about their strength, but I'd still be more gentle than to shoot some of the current factory stuff. Some Wallyworld stuff is pretty hot, probably near SAAMI max, IMO. I would not intentionally shoot those loads. I've run across a number of shells that are more suitable for your gun. Federal makes a moderate pressure load the T172 (paper) and the T114 (plastic) both are Gold Medal target loads with shot sizes for targets and smaller upland game. These are 1 1/8 oz loads at around 1100 fps and have moderate pressures. I'd consider these loads as about the max I'd use on a regular basis in your gun. There are lower pressure loads available that I'd consider as well. Frankly, with the original 100 yr old wood, I'd give some thought to shooting only my reloads that I use for damascus guns. They are nice to shoot and kill anything I use the guns for from pheasant to dove.