Well, it's done. May be a bit un-orthodoz but it all checks out thus far.
I placed it here because I didn't want to take up any current storage space.
Because it's around a water source the 120VAC is water proof on top of being GFCI protected. I just couldn't waterproof the secondary converter.
The secondary converter is plugged into a switched outlet placed in the back of the OEM converter box, rocker switched on the front of the OEM panel.
The secondary converter has a 47amp capacity and there is a 12VDC 6 circuit fuse box placed on the top.
I switched the secondary converter because it's a bit noisier than I would prefer and won't be used until high-draw 12V is needed. It's not all that noisy but not silent.
The power cord is a 6' pigtail. Gives me 31' to the shore panel.
The coiled length is taking up the space I would place my 300watt inverter...if I decided I even want much less need to add it in. I'll deal with that if I decide to put it in for the battery system.
I opted to keep the OEM converter and just incorporate it in and compact all the controls into it. There's nothing wrong enough with it to go through all that is necessary to totally replace it other than it's just not strong enough. At some point I'll probably reroute the wiring for the furnace into the secondary converter.
I put in a 7 1/2 amp push on/pull off breaker/switch I had for the water pump when I get that installed. The pump draws 5.8AMP at full flow so we'll see if it works out as the pump recommendations are for a 15amp fuse. Which the circuit will be on a 15amp fuse. If there's an issue with the 7 1/2amp breaker I placed it so a toggle switch can easily be put in the breakers place. The pump is an automatic but I wanted it switched anyway, just in case.
I powered the OEM converter off the Line side of the 30AMP push on/pull off breaker so the two systems can be individually controlled. Not sure why but thought it a good idea at the time.