My father and I got most of the work done yesterday, just need to wire the fuse panel and all the small adapters (12v and usb). I installed one battery under the frame and one in the bench. We are using Interstate AGM 34M batteries which fit in the box perfectly.
Interstate Batteries | Marine Battery | Marine AGM | Watercraft Batteries
Here is a pic of the bed I made inside the van, the battery and fuse panel is under the front of the bench on the right.
Here is the battery in the box before it went up on the Van
The exposed inverter so I can use the plugs for a few small items along with the relay so I can see the light and make sure it is functioning. I added 2 more usb and 2 12v for easy access in the front along with 2 12v in the rear of the bench. Since I have a big fuse box I will prob. add things as I go along.
Here is the wire coming from the electronic tow battery under the frame
the remaining wires going up under the bench using a pre existing hole
that is all for now. I hope to finish up this afternoon.