The 5 got damp because it was parked up for a long time, i obviously srted that out, the diff was welded for drifting purposes, and it did its job in that respect, and is now awaiting an engine transplant as the new owner is going to use it as a full time track car.
Scraped springs, yes, minor oversight on my part, the base of a coilover (where the adjuster is) is slightly wider than a standard suspension leg so thin spacers are required, again, thats been sorted.
And as for connector/socket issue, the car was already like this before i got it, the connector for the low water level is missing entirely, looks like the car has had some minor front end damage somewhere along the line as the inner wheel arch liner and slam panel have been replaced, and due to the route of the wiring im guessing that this connection has been lost during that, as was one of the fog lights, no wiring present on one side, which i have fixed, although, as im sure you will agree, things that have happened to the vehicle before i got it are completely out of my control.