Update on progress
Replacement fuel tank, fuel distributor, fuel lines, fuel metering head all fitted.
Engine stripped to reveal bores badly corroded, probably due to the head being removed at some point and left off so that moisture has got in

Probably should have started here but as these engines are fairly bullet proof I figured (wrongly) that once fuel issues were sorted it would run.

The original engine has been removed and a donor engine sourced so the car can be turned into a runner. Brakes will then be rebuilt all round and anything else required to get through an MOT - hopefully early in the new year.
Original engine will need extensive work. Rebore and over-size pistons are the obvious solution but over-size pistons are not available so I am planning to get the block bored out and sleeved so that the original pistons can be re-used. Will refit the original engine at a later date when it's sorted.
Donor wheels sourced for the car to sit on whilst the original wheels are refurbished. Thanks to Andy from 924 Club for the engine & wheels.
Boot carpets and rear seat removed but front seats are proving difficult as they are seized onto the runners so can't be slid back to reveal bolts. All sprayed with WD40 pending another attempt next week. Once the front seats are out I will remove all the remaining carpet so everything can be cleaned up out of the car.
The plan is to get her into a useable state and then drive her and complete the tidying up/resto work over a period of time.
I am putting together a list for

of bits I need
Going to be a long haul
Paul