Well, I purchased two Micro Air Easy Starts, and two of their Easy Touch thermostats to upgrade the systems in the Avalanche to be able to run both of the Coleman Mach 15 units on the genset or 30-amp service if needed and to be able to monitor and control the temperature remotely when we have to leave Max for a few hours.
After several exchanges of email with their sales/engineering staff I decided to go with the upgraded Bluetooth version of the Easy Start because my engineering geek side won over my frugal Scotch-Irish side. Helped by a very nice discount they generously offered me.
Now, I'm stuck waiting on the Covid driven, supply chain driven, shortage train to deliver.
But I did get my new generator delivered yesterday so I've got that to play with this weekend