I would probably email or call old grouch and ask what the used molle packs for 50 bucks in the clearance section are really like.
I am not that picky, if it shows up needing a car wash cleaning I will take it and throw it in the back of the pickup while I use the do it myself car wash to clean up the truck. Really the garden hose would probably work with some dawn dish soap and that way I could drink a beer or two while hosing it out and letting it soak and what not. I doubt they are that bad, but I would call and check if it might be a problem for you.
If set on woodland, good luck.
If set on hellcat, check the ee here and other surplus sites and see what price things will come down to with shipping included. I figure unclesams won't have alice stuff but I guess I would check there as well.
I think a medium hellcat is fine and dandy but part of why it got popular is a lot of folks already had the alice pack. Old grouch is clearing out the frames cheap, but shipping can change the price fast.
And in the end, with a hellcat I would save some money and assemble it myself watching some youtube vids and spend the money on beer and food to eat that night while assembling my new to me toy.