a couple of my guns that would "fit the bill"... maintaining my wifes familys century farm, I'm always outside working, cleaning up brush, cutting wood, etc... there are skunks, racoons, rabbits, woodchucks, & other farm varmints for which I usually carry a revolver to dispatch... it needs to be stainless, reasonably compact, & not get in my way while working...
my main farm carry gun ( we don't have bears in my area ) is a stainless 4" barreled Ruger GP-100 in 357 magnum... which with a good heavy bullet would be on my list much higher than a 40 S&W or a 45 ACP were I in your situation...
so... I'll admit I'm not much of an "auto guy"... but as a collector... I've got a couple... of my autos, this one does get some "woods time" on my belt... it's in my CCW gun group, so it carry's reasonably well, even though it's a full sized, full capacity auto... the Witness is reliable & affordable... I wouldn't consider it a "grizzly gun" but I'd feel confident with it for black bear defense, again with a good non expanding bullet selected... the Glock didn't fit me, but if it does you, it's lighter weight, would be an added plus...
you mentioned you have a nice Dan Wesson... if you shop around, you can find an older used one reasonable... I built this 44 Mag as a belt gun for rifle hunting in grizzly country, about 10 years ago... I've since replaced it as my main griz gun, not because I feel the 44 mag is not enough, but because I prefer stainless for my carry in any weather belt guns... CZ still offers support for the older Dan Wessons, so you could get a 2" barrel from them, either for your existing Dan Wesson, or for a used one you chose to build similarly... BTW... this one uses a custom barrel nut compensator, & is very very easy to shoot 2nd, 3rd, 4th...etc etc. shots ( a full sized frame will handle the heaviest 44 mag loads, & it still holds a full 6 rounds...
this one is "the business"... stainless snub nosed Ruger Alaskan... mine is 454 Casull, ( but they offer the same gun in 44 mag )... no lock ... & all business... the gun is heavy, but compact... if you are used to shooting magnums, ( I am )... I find it very easy to shoot with all but the stoutest 454 Casull rounds, & any heavy 45 Colt is almost pleasurable to shoot in it... because of it's size, it carrys easily, & is very durable... it's my belt gun for bear country...