Mines very similar. Except my hose reel is fixed on top of the tank so that it can be pulled hard from either side door. Think of a fireman running his hose out or the SAS turning up and you'll have some idea.
Where his (Bazzy) has his pump I also have a leisure battery hard wired in with a split relay and a DI vessel.
On the side of the van i have some clips that retain applicators etc hoselock fittings. I also carry tools, glue, fairy, and 5l water containers.
My bulk head is ply and I have holes where the poles go through.