The BladeForums.com 2024 Traditional Knife is ready to order! See this thread for details:
https://www.bladeforums.com/threads/bladeforums-2024-traditional-knife.2003187/
Price is $300 $250 ea (shipped within CONUS). If you live outside the US, I will contact you after your order for extra shipping charges.
Order here: https://www.bladeforums.com/help/2024-traditional/ - Order as many as you like, we have plenty.
That Sawyer system is insanely expensive.
MSR and Katadyn sell similar filters for < $100. I just picked up the Katadyn Base Camp, a similar filter with a 10 L bag capacity and a lower flow rate, for this summer's canoe trip with the kids. $68 Canadian.
I found this system from Sawyer at REI. I think this will be my new setup. It is impressive because it removes bacteria and viruses (most filters don't). It is a little expensive, but there is no filter to change (you just back flush it).
http://www.rei.com/product/778046
Your Katadyn Base Camp does not remove viruses, so the water will need additional treatment if that is a concern