Find ye a...
...S&W 342, because it's very light (10.9 oz.). .38 +P rated is adequate, because I can't imagine using .357 loads in such a gun, even in one rated for it, so why carry the extra weight...? The Centennial concealed hammer is better than the Bodyguard shrouded one, because it's a belly-gun and I don't think you'll need SA in real life with it. All alloy, so no rust issues. The trade off is that it's a gun meant to be carried a lot, fired very little, because it is punishing to shoot.
All in all, a very specialized little pistol that slips right into a pocket holster, and gives you five shots of Gold-Dot...