I know Adrian had a Weesatch and you could contact him about it. I wouldn't recommend the SO Tech shingles. I have 2 of them on my Callahan and because I'm not a large frame guy (only a waist 32), I have problems fitting the end pouches with mags. I can only fit 4 mags in a 6 mags setup because it's too tight to fit the other 2.
Something else you might consider is a company called Diamondback Tactical. The Battlelab Fast Attack RACK is a super peice of rig and it's about the same price range as the Weesatch. Raven is using one and one day when I get the chance, I'll be buying one too.
http://shop.store.yahoo.com/diamondb...fasatracw.html