Ummm...I'm actually the wrong guy to ask about that...because I make my own :). I kinda have to, my beloved NewVaq357 daily CCW piece is so heavily modified nothing off-the-shelf will fit.
Long story...basically that's the "Goshdarn Hacksite Mk4", a homebrew clone of the Goshen Enterprises Hexsite sold for Glocks and such:
http://www.goshen-hexsite.com/index2.php
I'm now up to the Mk5 which is even better, but I can't show pics of it. I convinced Tim Sheehan at Goshen to let me have a local machinist make it based on a design he came up with but hasn't published yet. It's still hex-based and still involves focusing on the target instead of the front sight.
The holster I've been working on is an oddball because it's the only leather rig you'll ever see that has near-infinite adjustments for tilt angle and ride height. It straps onto the belt via any of a number of possible belt attachment mounting locations:
Paracord 550 runs under the belt at each side and meets across the body in a buckle that allows a broad range of adjustments. Once it's "cranked down tight" by pulling on the end of the tapered leather strap, it holds as tight to the body as a pancake type holster if not tighter, and allows for sky-high ride heights - in this case crossdraw with the whole cylinder above the beltline. Here's the backside:
The "core" is a very simple leather "taco fold" and then the "skirt plate" with the holes are added. In this case there's an inner "liner sheet" coming up the inside from the bottom, it folds over the top edge and attaches to the skirt plate at the two conchos up top.
And here's an earlier incarnation worn where I like it...
...but it can also be dropped and tilted the other way for appendix carry or strongside FBI tilt as needed.
It would be VERY possible to take a single piece of stiff leather cut in a big oval with holes each side, sew that "skirt plate" top and bottom to a cheap nylon "Uncle Mike's" type core with the original belt connections and straps cut off and adapt the whole thing to this sort of "strap it to the belt" setup. I'd be glad to help you through it if you want.
The design for this belt attachment system is all mine - available under a Creative Commons Non-Commercial Attribution license. Basically means you can make your own, if you publish pics credit me (the "attribution" part) and if you want to make 'em commercially kick me in for modest fees :).