I have arranged group pricing on Pro-Set Epoxy from Fisheries Supply in Seattle. They ship UPS and so far I have not seen any hazmat charges. Prices are as follows:
125 Resin: .98 gal = $87
4.29 gal = $324
226 (med) or 229 (slow) hardener: 0.33 gal = $48
1.43 gal = $154
Cost per gallon for the 1.3 gal kit is $102/gal. The 5.72 gal kit is $84/gal. WA residents add 9% sales tax.
To obtain this group pricing, call Kathy Hayden at Fisheries Supply 800 426 6930. Mention the "Canard Builder's Association", Acct # 633777. Ask to set up your own "cash" acct, which will be linked to the aforementioned account number and get Association pricing.
FYI - this discount pricing is good for anything in the Fisheries Supply catalog. They carry an extensive inventory of marine parts and supplies.