I converted my 30 amp coach to 50 amp when I installed the cord reel.
I have 2 auto transfer switches.
A 50 amp for the shore power and all else that feeds the breaker panel.
A 30 amp (existing)to transfer from gen set to inverter and feeds the 50 amp switch.
Totally automatic transfer!!:B
One thing to be aware of is the fact that you will have 2 delays stacked.
This caused some concern when I first tested!!:o
Housted
2019 Forrest River Forrester 3051S 2014 Honda CRV toad.
1000 W Solar, converted to 50 amp
400 Amps of LiFePO4,3000 Watt Inverter, Refer converted with JC refrigeration unit, Sofa replaced with 2 swivel chairs, over cab bed converted to TV mount and storage