Here is the Tank and frame fitted in and bolted through the van floor. it is also fixed along the top of the frame inside the van hence the long piece built in the frame on previous pics. Now the control board. First I cut a piece of plywood, drilled to fit the side bolts on the tank frame and sprayed black Then mount the controller and pump. Then drill through and fit all the wiring at the rear. Follow wiring instructions on your controller for correct fitting. I also fitted the voltometer into a small box I had lying around. Then I fitted a lawnmower plug to the back so the control board can be removed if need be.