I have been following A-TACS lately and don't see any clothing out there yet. I do see that Propper ACUs will come out in April or May. You should be able to pick them up at any dealer. I prefer VTARMYNAVY or PredatorBDU depending on whose price and shipping is best at the time.
I'm going to take a shirt and some Faux sponges and some Rit dye and try it myself. I do Faux finishes as a painter.
I'd probably stuff it up I think I'd probably have to buy the commercial product...if I attempted a DIY try, i'd probably create a faux pas : O