Speaking as someone who had a 2400 watt inverter and downsized to a 1000 watt inverter. 1000 watts is plenty for TV and charging the phones/computer.
Even with two batteries (150AH total) and the 2400 watt inverter, the coffee maker was too much as it sucked my batteries dead before coffee was made in the morning.
Save the batteries for entertainment/lights/heat and use the cowboy coffeepot and gas stove for making your coffee.
Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
HAM CALLSIGN - KC3FFW