Apologies of late response...
The header tank is the standard one with this neat AutoSpecialist header tank cover (simply sticks on top with double sided pads).
Header Tank Cover Also they do a nice cap cover as well..
Header Cap I tweaked the position of the tank slightly to get it tucked under the heater box overhang and I was pleased with the result as well.
I used Stainless Braided fuel line available from CBS Online
Stainless Fuel Line and remember the address is...
Father Christmas
Lapland......