Tom,
Looking at some of the prices of that brand, it sounds like you sure did get a screaming deal.
What brand was your refrigerator that you removed and do you still have it?
When you mentioned that your refrigerator will use half of your battery capacity, are you talking about total battery capacity or usable capacity?
If you will be boondocking in the winter time, it sounds like you will be needing to use your generator daily, as the solar days are very short. One thing to note, if your batteries are low enough, where the short solar days or poor weather won't fully charge the batteries, it is better and more efficient to use the generator in the morning to do a quick bulk charge or even a partial bulk charge and then the solar can top off the batteries throughout the rest of the day. This allows one to minimize the generator run time needed and still have a full charge by the end of the day. Usually a short run of 30 min to an hour is more than plenty and the solar handles the rest. Many folks end up firing up their generator in the evening to charge their batteries when they realize the solar did not fully charge them, this is the least efficient way to use the generator.
Another option to consider, to help conserve power consumption at night, is to put the refrigerator on a timer, and have it set up where it runs during the day and is off at night, with an exception of one 20 min cycle in the middle of the night. The new refrigerators are pretty well insulated, so one run cycle will be more than enough to keep the food cool till the morning.
As for upgrading your inverter in the future, I upgraded my inverter to a Magnum (MS2812) pure sign wave inverter, and I can't recommend it enough. Even though they cost slightly more, they are high quality and work really well, and are one of the few, if not the only ones that are still made in America.
For people that ofthen park in driveways of relatives and/or friends (moochdock), Magnum has a very nifty hybrid inverter (MSH3000) that allows you to draw more power than the 15amp house outlet that you will likely plug into, assisting/making up the difference of the power used, in excess of the 15amps, by inverting. When the load decreases it switches back to charging mode and recharges the batteries back up. For an example, if your plugged into a 15 amp outlet and you need to use your a/c, it will help cover the difference, and at night and/or when the a/c compressor cycles off, it recharges the batteries back up. A very nifty option for the ones that need it...
The other nice thing about these inverters, is their charger is very efficient. My old Xantrex 2012 would draw 30amps @ 120vac at full output of 100amps dc, while the Magnum only draws 18amps @ 120vac at full output of 125amps dc. A marked difference in power consumption.
Another thing I did on my coach when I started boondocking, I set up my coach were the inverter can run the whole coach, this way I am able to use what ever outlet I want to. Obviously this requires simple power management, as the inverter output capacity is limited. For me this was so much more practical and user friendly, instead of running extension cords everywhere and guessing which outlets work on the inverter and which don't.
Just some ideas and suggestions for the ones that enjoy or are considering boondocking.