Why on earth would you need a business import liscense? You're just an individual buying parts for yourself...
It sounds to me like the seller, or someone after the seller filled in the wrong form and you got taken to the cleaners.
If the parts are used, or made in the US there is no duty...no special licenses or fees either. You pay the applicable tax(s) and you're done.
UPS recently got sued and lost the class action suit against them. They were taken to task for their usurious "brokerage fees". I haven't used them recently regardless, but those fees may be greatly reduced or even completely gone now. Not only were their 'rates' the issue, but also how they'd appear at the door with their hands out while holding your stuff hostage.
As I mentioned earlier at least Fed-Ex adds their fees in up front so there are no surprises after the fact, plus their fees seemed reasonable.
Post office is a decent way to get your stuff...as long as you don't care how long it takes.
Rene
