[Richard L]

The more time I spend now will save more time in the future.

I have changed the wiring a bit. The red wire of the grey harness will now go to the (+) of the fuel injector, making the distribution of the wires a bit simpler.

The tank level sensor can be put anywhere. Putting it in the back stops the "low level" from triggering during acceleration when the tank is low. The system will not trigger the failsafe if the "low level" trigger is only intermittent. However, it will trigger if the sensor is reading low for 20 seconds.

Look for a tall and thin tank if possible so sloshing is minimised. It also takes less space so you can pack your tooth brush in on long trips.