Thanks for all the responses, greatly appreciated. I have not though about hours and capacity and such in a long time.
My Everstart 29 125 amp hours 205 reserve capacity. I'm guessing that this is in a lab under ideal conditions. If your 2 GC batteries have 210 capacity my GR 29 cannot have 205 capacity?
I will be taking one long trip with this MH which will involve daily driving so if I can keep the fridge cold overnight I will be OK. I will not have a toad so the Toy will be home and daily driver. After that I will be taking local excursions here in FL and using AC most of the time, so much generator usage or campgrounds.
I am going to head your advice and make accommodations for 2 GC batteries, so I can install if needed. Or maybe I will give up and reinstall the RV fridge : )