Solar for man cave

I have had to move my man cave further away from the house so an extension cord is not practical. I have a propane heater and Vita550 with a 100 watt panel that powers everything in my man cave this time of year.

I need to save up money for a setup to power my air conditioner only since I will still use the vita 550 with the 100 panel for everything else. I found a Frigidaire that runs on 400 watts with about 800 surge watts. What would would be recommend to power this for about 4 hours in the Kentucky heat.