My personal advice here is that if these bags are only going to be used for a personal impression and display purposes, you might as well try and save your money and invest in a pair of originals. They do come up from time to time, and you can pick them up in relatively good condition.
I know that Kevin M has a pair of the suspenders listed on eBay at the moment, and I dare say that if you try contacting him, he'll have some bags for you too. Here's the link to his eBay auction:
http://cgi.ebay.com/Original-WWII-U-S-M ... 0275906504
Purchasing original Suspenders and Pouches has a number of advantages over reproductions. Firstly, they're accurate, and I dare say they're certainly a lot more durable than the modern examples.
Hope this helps with your search,