Guy who's fabbing up stuff for me is coming round tues/wed to get some stuff done, till then this is what I've come up with.
The plan is to stick my fuel filler behind the numberplate as its the closest point to the fuel cell and allows the fuel to drain down into the cell. It is also the neatest and nicest way to set up the cell so the boot area looks neat and symmetrical.
Also just got some cheep floodlights so I can do some work when I get home as its getting dark early now.