Hi Milsurf.
One of these combo cartridge belts might also be a neat alternative you might consider. I can't remember it's military nomenclature right now but one of the experts will probably know. Sorry that I didn't think of one of these before and this is one of my cartridge belts. Obviously, it was intended for carrying a 1911 and a service rifle, and I think it's more interesting than just a run of the mill pistol belt.

There are eyelets on the bottom of it for attaching all the other mandatory field gear you'll need such as a WWI canteen, first aid pouch, etc, and as long as you're at it you must get a M1910 haversack that has straps that attach to the upper eyelets on the cartridge belt and act as suspenders to help hold up your belt loaded with all the essentials. Then you only need to buy an entrenching tool and carrier, and of course a 1905 bayonet to attach to the corresponding flap with eyelets on the side of the haversack, or it'll look incomplete or downright NAKED.
(It's sure fun spending your money!)

I think one of the coolest things I discovered with this belt was the little instruction sheet folded up in one of the cartridge compartments. I had the belt for some time before I discovered they were in a pocket.