From another post I will follow your advice and go with two independent busses each powered by it's own alternator and battery. I do think it would be a good idea to have switch that is also a 30 AMP circuit breaker that I can use to tie the busses together if needed like during engine start and should one alternator fail I could keep the second bus powered after load shedding unneeded items like lights/etc. Does anyone have a recommendation for such a switch/CB? I did a Google and did not come up with anything. Any other suggestions/advice would be appreciated!!!