I cleared trophies myself from New Zealand in 2015. It was a bit confusing but it took me about 2 hours total vs. paying Coppersmith $400+. Well worth my trouble. You need an FWS account https://edecs.fws.gov/
My trophies came in directly to Port of Anchorage, so it was super easy for me to drive over to the airport on lunch and clear them. If your port of entry is LAX and you're in Texas, you probably need to hire someone.