The "Last Chance" belt should do you just fine. I have a similar "Instructor" belt that is plenty heavy enough for my Taurus PT-145 and any similar heavy gun I would wish to carry. Frankly, I think paying ~ $80.00 for a custom gun belt is a total rip-off, and I know because, among other things, I make belts and holsters.
One thing with the Last Chance belt -- make sure you know how the buckle works!