Cheryl, your getting a ton of input, and I dont think any of it has been wrong, but it may have been overwelming.
Lets start with this,
You have a 27' class C. No genny, that I think you have been using in RV parks with at least some hookups.
I am guessing you are looking at changing how you are using it.
Can you then tell us what your goal is? Where you plan to live or go and what you would like the inverter to do.
I have a feeling your looking at one much larger than you may need, but please give us an idea of what you want to do and any of us would be happy to try to be helpful.
