I don't have any experience with the repros of the Crye combat pants but I figured I would offer up an alternative that would solve the problem. The
Vertx pants are a great piece of kit and they won't break the bank like Crye pants. Unfortunately they don't have integral knee pads but they do have a gusseted crotch so ripping won't be a problem and they are made in the USA and are great quality. They are some of the best fitting and lowest profile combat pants I have personally worn. If I recall correctly there are a few guys on here that run them.