acetate is like the "blister pack" plastic packaging that some items come in from the store. you can make it red with window film from walmart. I suggest you google Vacuforming, I am not an expert at it so explaining it properly is not a good idea.
A lot of the gear is pieced together from different gear, like the LBV is made from a mil-spec LBV ment for airsoft, with pouches from an airsoft site sewn on the front. this costume was really fun to make because I just studied pictures trying to figure out what would work best.my best advice is to search ebay.
thank you very much! after the past month, i have attained everything save the S10 resp. and gloves. Expect to see images in the coming weeks however, i don't think they will be up to the degree of awesomeness in which your outfit currently, comfortably, resides.