Ok, thanks for the reply. Just thought I'd ask since REI is 10 minutes away (for better or worse... mostly worse... ha!) and I'll be going by there, anyway.
I'll probably just buy Atlas Straps for this weekend to use and then order some polyester straps and toggles from Arrowhead to use after. I'm pretty sure I won't be able to find any polyester webbing locally, but I'll double check at REI just to be sure.