From Canada to USA - buying used stereo from private sale


Happy New Year everyone! Not sure where to post this! Please move it to the appropriate forum. 

So if I buy anything preowned such as amplifier, DAC, turntable, phonostage, cartridge that are originally made in Europe, what procedure do we (both buyer and seller) follow?  This is obviously for personal use. I (the buyer) am in the US and the potential seller is in Canada. 

1) Let's say the price is less than US $2500 and shipping is less than US $250. How much (if any) customs and other fees do I (buyer) pay? I looked at the Harmonized Tariff Schedule and it went way over my head!!!
2) Is shipping through Canadian mail vs Fedex or UPS makes a big procedural difference?
3) What is the responsibility of the seller and the same of the buyer? 

TIA for inputs!
Confused

128x128confuse_upgraditis
I sold a DAC to a guy in Canada last week. He paid for shipping to Canada and sent me a PDF with the shipping label. He used these guys,
https://www.eshipper.com/

Now this is into Canada I am not sure about the opposite direction. For Customs he declared a value for the unit I sent him (an interesting number).

His shipment was via UPS.

I am responsible to send him the audio unit in the description I described and showed in photos. I am also responsible for packing the shipping box in the way I described. In my case it was OEM boxes that were doubled boxed.


Might consider stopping by a local UPS & Fedex store and ask what the protocols are; or call their customer service lines to find out. If it was me I'd avoid Canada and US postal services during the pandemic both are having delivery turnaround time problems
Post removed