I put the battery on the RV on Sunday and by Wed it was at 50% running the fridge and parasitic stuff. So 3 days to 50% with one 80a/h AGM. I also ran the lights a little and fired up the heater for about a half hour. maybe 2 batteries will get me 5 days to 50% with real camping and not sitting in my driveway. Just my little non scientific experiment. When I hooked 120 up the batt was fully charged in 4 hrs with the minimum still running.
I think if I'm going to purchase a generator it will be either a 2000w or 3000w. I think 1000 is just not going to cut it. I have a friend selling a 3000w Yamaha quiet gen for $1300 and it only has about 100hrs on it.
Thanks for all the info. I'll keep researching and figure out what I'm going to do. I think trial and error is going to be the best learning experience. So now I need to go camping