I have just placed my order with Pro Alloy for there fuel cell and your looking in the region of around £600+ dependant on your requirements.

Its all the other parts required though which im needing to look for now..

Fuel pump
fuel pump cradle
fuel filter
Aeroquip lines (ptfe lined)
Fittings
chassis clips

All going in a mk3 Fiesta so everything is not available of the shelf.

So need some inspiration from the cossie boys.