Decision time - Resin

[Locke N Load]

I have posted the same on THT so to dual readers my apologies, but I wanted the opinions of those sole CSC users as well.

I believe I have reached the point of analysis paralysis. I am ready to order materials to skin the Coosa transom from the inside, raise the stringers a couple of inches, replace the deck with Carbon Core, build a bracket with Coosa as the core, make new bulkheads/console, repair cut-outs in the hull and fill in the cap in places for my Seafari. The glass will be 1708. The question then is what resin?

As I understand it from plenty of online research and no actual experience, polyester resin is the standard boat builders use because it is strong and stiff and cheap. It, however, lacks bonding strength for new parts to old parts compared to epoxy resin. Epoxy resin, on the other hand, is very strong, more flexible/less brittle, bonds well to existing parts and is most expensive. Vinylester resin is a sort of compromise between poly and epoxy, but more similar to poly and priced between the two.

For its bonding strength, I am strongly leaning towards using epoxy for the transom, stringer, deck, etc. work I need to do. The bracket could be done with poly since it will be a separate part, but any reason not to just use epoxy since I will be using epoxy for everything else? Same for the deck since bonding to the hull isn't as critical strength-wise compared to the transom and stringers?

Or am I overthinking bonding strength? Will poly provide plenty of strength for the inside skin of the transom to the hull, raised stringer section to existing stringers, bulkheads to hull and deck to hull? If epoxy will be a noticeably superior product for these applications I will use it, but if it makes little to no difference I will use poly.

Then the follow up question, if epoxy really should be used is, what brand? Some are way more expensive than others and I figure I am going to need 30 gallons. It makes a difference if I use Raka at $47 per gallon or U.S. Composites house brand at $40 compared to Total Boat at $100 or West Systems that I won't even comment on. Any recommendations or alternatives I am not aware of?

Hopefully, temperatures will be improving soon and I want to be ready with the materials now that I have my boat shed in place. Thanks all.