Well, I pulled the trigger on some stuff. Ebay sent me a 10% ebay bucks promotion, that prompted me to search there. I found there is some black friday pricing from renogy there. I got a renogy rover 40 amp mppt controller for 129, and a bluetooth attachment, for 38 so I can mount the controller in the basement, and a pair of 200w panels for 370. Plus a fuse and some cables and parallel connectors. Free shipping, no one charged me tax, and I'll get 10% back. I'm satisfied with that. Thanks for all the suggestions!
2018 Eagle Cap 1163 triple slide, 400W solar, MPPT, on a 93 Dodge D350 Cummins, DTT 89 torque converter, big turbo, 3 extra main leafs, Rancho 9000s rear, Monroe gas magnums front, upper overloads removed, home made stableloads, bags.