I took the fuel tank out in order to complete the pipework. I also wrapped rubber around the pipes where they emerge from the tunnel. Installing the drivers side tunnel side was a real pain. Next time I'll panel up to the the dash before installing the floor. The rest of the panel would be easily fitted later.

Still not sure about the fog and reverse lights. Trouble is there are very few positions that meet IVA requirements that are not too close to the exhaust. 

I would have liked to run a piece of angle down the passenger footwell attached directly to the 1" tubes. However the tank is a very tight fit in this area. I settled for the solution below. The angle itself adds rigidity to the footwell and is bonded to the side panel with Stikaflex.