2oldman just finished reading the entire thread and hope it works out as well for you as the 500ah GBS LFMP system I had installed on the my 5th wheel. Yes I cheated and had it installed. I suppose my expectations for solar might not have be as high as other than just having the ability of being in the boonies and still have the modern convinces as never having solar before and going with lithium batteries. It's been a year now and doing over 200 days without hook ups last year and 151 days this year so far. The system has far excedded my expectations for power being that there just doesn't seem to be a lack of it from the batteries.