Thanks, guys!
For anyone wondering, the weathering was achieved using KRYLON Brand Camoflage Khaki Spray paint (Walmart has abundance) and TESTORS paint thinner (local model shop/hobby lobby).
All I did was spray into cracks and any place sand would naturally accumulate, then take the thinner and some Q-Tips to clean the high points and rub away with a paper towel. I repeated a few times to get the look of old and new accumulation. Also, the thinner changed the consistancy in some areas so it made it look layered. The last thing I did was mist everything.
I tried using poster paint, but I wasn't satisfied. So I figured, this suit has plenty of scratches, and I already have a TK spare suit, so what they hey, I may as well use spray paint, and be capable of all-weather trooping. It was easy. I did a few suits with just one can. A large bottle of thinner will do one suit.
The thinner does not hurt the ABS, in fact, I was using it to clean my TK to great effect. It is perfectly safe.
Rock on brothers. Look forward to trooping with you all!
-Airborne Stormtrooper
TD-9914