I built the tricking 32power tri by building section in a one car garage the assembling on the trailer then doing deck and interior.had many years and miles in the Gulf with no issues currently rebuilding parts from a 23ft trikini into a 2/3 size pt from pieces fabricated the will bond together.

I don't have a clue as to the reasonable limitations of infused panels, but here goes:

If one were to limit themselves to building the molds and infusing the foam in sections within a space of 20' by 20' (and later gluing the sections together in a larger shed), could you within the reasons of structural integrity build a 36' overall LW hull, beams, and WW hull/cabin? 

Bob