As suggested by readers of my build post I've copied here too.
The unit is up and running. One or two more leads to be connected for accessory measurments but the alternator is cranking out the amps to the house battery far better than before. This unit charges the starter battery and house battery independently and at a much faster rate.
With my previous setup the alternartor would charge the chassis battery first and quickly fall off leaving little going to the house batteries. The solar typically does a great job charging the house batteries but on cloudy winter days it was barely keeping up with my daily draw. The Gorman trip was a great example of why I wanted this new setup. It was mostly cloudy the two days we were there with very little solar coming in. We went on a couple hour drive around the park but hardly any juice went into the house batteries. A two hour drive now in those same conditions would have fully topped the batteries up.
This last day of watching all the meters (one for almost everything now) I see the house batteries getting far more amps than before. This AM it charged at a steady 50 amps or so on a 30 minute drive. The output to the house battery works in 4 stages similar to the solar for maximum efficiency.
(Disclaimer: I am not an electrical expert of any kind and I am sure there are many other ways to achieve what what we have but this is the one that is really working for what I need. Ramsey would could probably rub two pennies together with a wire in there somewhere and get what we have done for free. Happy to answer any questions if you have any)