Anyone have experience ordering large amount of parts from the US? How was customs?

[xdragus]

So looking at a fast intentions stage 1 turbo kit. But worried about how much fedex/ups is going to charge for bringing it over.

How have custom fees been for those who've ordered large parts? maybe like rims? or a built engine block?

I've asked FI what parts can be considered part of NAFTA that will help in custom fee reduction.

Just want to get an idea before I try contacting White Head performance or another shop that'll order on my behalf instead of going through the customs process myself.

Any help needed, thanks