For years I have relied on two separate levels to get things reasonably level in our van. I used the Lev-O-Gage for left to right and a bubble level that I had strategically mounted above the drivers door for front to back. These have never been easy to see straight on from the drivers seat, particularly at night. So I have been thinking of a better way for a long time.
I picked up a bulls eye level a while back to see if this would work better and where I can put it. I decided to put it on the center console in plane sight. I could have just leveled the van and put some epoxy putty on the bottom of the level and stuck it in place. But noooo, I needed to make a project out of it. I didn't want it to look like an after thought. Maybe I could make it look like it was an option that the manufacture offered.
It had to be as flush as possible so I was going to have to drill a 1" hole into the top of the console. Then I had to make an adjustable support that would fit in the underside of the cup holder.
I started with a 1 1/2" ABS plastic pipe cap. I had to shape it a little to get it to center where I wanted it. Then I drilled and tapped two holes for the level adjusters. Then I started on the leveling tray, this is what the bulls eye level will sit on. I had some sheet aluminum that I cut into a three pointed star shape. One end was pointed, this would be the fixed point and the other two had a slot put into them. This slot would pinch the grove I put on the end of the two screws. These two screws give me the ability to make fine adjustments after I mounted the unit.
I also put a light in it with a separate rocker switch. That way if I was setting camp after sunset it would be easy to see. I used a short piece of the LED strip I used in my florescent light conversion. I glued the bulls eye level on the aluminum leveling tray and then glued the whole unit into the console using epoxy and Q-bond. (If you've never used Q-bond you should give it a try. I bought it for the first time earlier this year and now I use it all the time.)
http://www.amazon.com/Bond-Repair-Small ... B003YI421I
I leveled my van and reinstalled the console and made the final adjustments.
One thing I learned while doing this was that when the van (floor and cabinets) are level, the bed in the penthouse is not, it actually is sloping down in the back.