Actually, AQIS was just $50 for turn up-tion, & $139 for inspect-tion which took not even 10 minutes and was conducted pleasantly. The correct fumigated stamped (international) timbers were used in the packing/bracing. All wood crates were separately fumigated and certified "that side" so I didn't need it done "this side." AQIS already had a copy of my paperwork for all that, thanks to my customs broker.
AQIS website has all the good goss too.
Do some research, follow the rules, equals an easy run.
Customs brokers do this all day, every day, and prices for inclusions and services vary. Most large customs brokers, and smaller ones, would have handled aircraft and parts before - just another day at the office.