A 2000 watt invertor might not be able to start the 750watt pump motor. The motor will draw a lot more than 750w for a second at start-up. The invertor circuit breaker might click off on you.
I’d get a portable gas generator to run the pump for short intervals.
I’d plan on 12v peltier coolers instead of a small fridge.
I’d get a few more solar panels.
I’d get a few cheap Chinese charge controllers from ebay as backups. You can get a 30amp for like 25 dollars.
I’d downsize the 40w lights to 17watt florescents or even better LED lights.
Get at least one backup invertor.
Get a couple more deep-cycle marine type batteries at
Wal-Mart ... I got mine there and they were cheap at less than 100$
Small system Solar is good for powering small fans, low watt lights, CB radios and such...not so great for microwave ovens, fridges, air conditioners, pump mortors.
I figured for a 750watt pump, 2x that for surge would be about 1500 watts. I need a bigger inverter?