Fuel Pipe Leak A100 T44

[ovalking]

Went to start the car (1988 Audi 100, UK base model) and heard petrol
spraying out near the rear wheel, quickly making a large puddle.

I can not see exactly where it is coming from, but it appears to be a
leak in the fuel supply pipe, possibly out of sight, in the section
where it rises vertically around the fuel tank.

Have checked the archives, but most leaks encountered seem to be
underneath in the straight section, near one of the supports.

Has anyone replaced the fuel pipes? It looks like it might be difficult
to get the pipe routed correctly.
Does the tank have to be removed? This would be a problem as it is
almost full.
Do new pipes come pre bent?
Could I replace part of the pipe with a flexible section, assuming I
could make good connections? I'm thinking something similar to the
braided section in the engine bay.
Haynes and Vagcat.com refer to a fuel accumulator, but where is it ? I
can't see it anywhere, but if present it will affect what pipe I need.

The car is currently in storage, and is not easy to move to a well
ventilated area. The car has a few issues so is possibly not worth repairing.
However, I'm still concerned about the safety aspect of all that fuel
sitting there.

Any advice appreciated.
Thanks, Gary