Hi CHP, I have the same make/year/model as you and am also planning to go solar/lithium in the next year, once we move to FT in the RV.
Please keep us updated as to the install process. I wish I could add value to this conversation, but I too am planing this.
Suggest to look at the install of Paul and Nina @ wheelingit. They just did a big solar/lithium upgrade and put the batteries/inverter in the washing machine cabinet that you and I have in the bedroom. it looked reasonable. Mine is just a clothes closet at the moment.
-mike F432601