Lantley wrote:
In the OP's case do you want:convenience,best bang for the buck, maximum power and run time, maximum ability/time to stay off grid? Are you able to lift heavy things and maintain a portable set up?
What is most important to you and you alone? This is really not an at large group decision.
The answer is more about how you intend to use your rig vs. price.
In the RV game it's always cheaper to get it right the first time, but in order to do so your expectations and intentions become critical
I agree plus from the OPs post he doesn't have the experience to get it right.
OP Consider going to a CG with power and leave the power off and learn what you need. Your battery will be discharged very quick, then turn on the power and try again the next day.
Now install 2 6V flooded batteries and you'll jump up to 230AH at low cost. Then get serious about how much power you need, the costs, the starting point and future upgrades.
Now you've spent less that $200 and have begun to build a foundation of knowledge and maybe just maybe you can get it right the first time.
