You can use the s1 pump and tank, fuel lines to the bulkhead etc. You don't need the accumulator.
On the bottom of the fuel reg ( fuel return ) just use some low pressure rubber hose to the original steel fuel return pipe that runs under the car.
For the feed, use the original pipe under the car from the pump to the bulkhead, high pressure pipe to a filter, then from the filter to the fuel rail using the frst ( efi ) plastic high pressure pipe that screws onto the fuel rail.
You can change the ends on the high pressure plastic pipes to the quick release for ones that allow you to use the ford small fuel filters fitted to petrol mondeos, escorts, fiestas and ka's etc.

You can see the fuel line onto the fuel rail here, and if you look just at the rear behind where the pressure regulator bolts to, you can see the fuel filter on the bulkhead



The set up on my old FRST, line to pump, to filter, to engine - mounted on the gearbox



Couldn't find any more pics of the fuel lines on my photobucket, Sorry.

Gadge