FWIW. I like MR's gear aswell. If you have a Sierra store close to where you live you may check it from time to time since they sell MR overstock/discontinued and factory seconds at very nice prices. Their selection changes constantly. I see their backpacks and gearbags frequently at the ones on the front range. Here's an example:
Mystery Ranch Fixed 1-Day Assault Backpack 43KAU at Sierra. Celebrating 30 Years Of Exploring.
www.sierra.com
Forgot to mention......check Craigslist in states that have military bases, they usually have dozens of MR stuff for sale. Good luck!