If all you want to run besides a coffee maker is a TV, I'd get the percolator style coffee maker, and a cheap 150 to 300 watt inverter.
Some electronics don't like modified sine wave power of a cheap inverter, but this 300 watt pure sine wave inverter is under $50. It has good reviews on Amazon. Just be aware that you should probably keep the load under 150 watts for most 12 volt wiring. Only go over that if you run heavier wire for it.
I read several of the negative reviews, and they seem to be from people that tried to exceed 150 watt, 15 amp loads. "It kept blowing fuses"
https://www.amazon.com/BESTEK-300Wat...dp/B07KQ4Q2L5/