I was in a similar predicament. Building in Canada. The shipping and customs cost as much as the kit does not to mention currency conversion and thanks to NAFTA importing wood is a disaster.
I also used West epoxy. No problems there. Trailer is sorted. Im just in the final stages of completion. Budget isn’t so bad. Right around 5k CAD all costs including the plans which is almost exactly equal to the Aussie dollar or about 3900USD.
PM me your email address or something. I think I can help you out with a couple things.