@2psyop There are many buyers of recognize the minimal value of all the "sleep-well-at-night" issues you bring up. The OP obviously is one of them and willing to sleep fine without a warranty.
I can't remember the last time I made a warranty claim but I do remember frustration over the years when warranty claims were difficult or denied. I don't even like warranties on vehicles. I'd light money on fire before I bought an extended warranty.
@2psyop I have bought a few things from outside the US. As a consumer, you will be liable for very little duties. I think I paid $30 on a $4500 amp once. The key is the code that the shipper uses from the Harmonized Tariff Schedule. Gooogle it and see how complicated it is. Ask the seller what tariff code they use, look it up, and you'll see your import duty responsibility. That said, it may not quite match but mine was such a small number I just paid it and went on.
Jerry
Jerry