Yeah, I haven't seen the BDU shirt for sale since around the time I bought mine 3 years ago (it looks like they only make the BDU shirt in three styles now: Woodland, Olive and 3-Color Desert.) I was able to modify the collar fairly easily myself. I also bought the SFU trousers instead of the CPU ones as they don't have slanted cargo pockets and they're a bit cheaper. They do have a different style main front pocket; the SFUs have more of a horizontal blue-jean type main pocket and the CPUs have more a traditional trouser style slanted pocket. Other than that they are pretty similar. One thing I do like about them both is they have knee pad compartments - I added pads that came out of a pair of motorcycle pants and it helps a lot to keep the leg armor from shifting & slipping down. I also picked up a Polish Desert soft shell jacket (windbreaker) on close-out this past summer; I figured I could use it for some of the various extra USCM patches I have kicking around.

And just FYI, I really do like the Helikon Polish Desert camo as I've posted elsewhere, which has inspired me to do a "desert" USCM build with my second Matrix Airsoft PR. I originally purchased the "Tan" version for $250, but they sent me the OD version by mistake; since I'm going to tear it down and repaint it anyway it doesn't really matter what color it is; I just got a better deal on it!
-scoff