question before I commit

ok, I should be putting stringers in tomorrow or the next day depending on work and weather( keeping up with not for the week of heart). I've been shopping resin and this is what I've come up with. Evercoat has a product called boatyard and it's $32 a gl compared to the MAS $75 a gl. Is it ok to go with the boatyard or should I look for something else? I'll be buying a few gallons in the am I think it should be just fine for reglassing the stringers but wanted some expert opinion. Any help? Also found the plywood skools been talking about $35 a sheet. I'll have pics of the progress as usual.