1. I do a lot of boondocking. I have never felt a need to upgrade my converter.
2. I did install a second 12 volt battery so I have two 12 volt batteries. I can camp 3 to 4 days before I need a recharge. Simply do not turn on a lot of light -- enjoy the outdoors. The refrigerator uses most of the power even when on propane. After 3 to 4 days I need to get water and want to move to a new campsite anyway.
3. I have never felt the need for an large inverter. I do have a small inverter that will run my computer. What to you plan to run that will need 110 volts. You are boondocking so enjoy nature.
4. On the last trip I did pick up a 3,000 watt Champion generator from Home Depot for less than $1,000 to run the A/C since we planed to camp at low elevation desert during the summer. At the high elevation of YS/GT you may not need the A?C
