Thanks guys for the ideas. Never too late for a change and the idea for a backup kerosene tank is a good one. I would still mount it outside the box though. Lived the last 20 years sitting above a diesel tank and really want to avoid having any fuel inside. Heather and I always joke that people can tell that we are boat people from our "aroma". A wonderful mix of diesel, mold and salt. Yeah, it is not all sunsets and margaritas

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Small update on the metal work, our gray water tank bracket is in place and holding the tank. Still need to take it back off and paint. The tank is about 30 gallons, welded 1/2" polypropylene. I wrapped the front and bottom with 14 gauge steel with 3/16" straps to hold it up. It fits snug against the habitat floor in between the subframe rails. Had a minor setback today. The mount plate for the rear tire ended up being a wee bit low so the tire will not fit on. So we need to cut it off and reweld it a bit higher. All and all not bad given all the work that has been accomplished.
The entry steps are almost finished. Should have pictures of those tomorrow. We should also start in on the rear storage boxes, some of the needed parts were being bent today in another local shop as Charlie does not have the required brake.