Reworked the fuel pump setup a bit, added a proper filter. Needed a mount adapter plate. The other pump is a spare got for $20, after paying a lot more for the shiny one.
I bought a few proper NPT (instead of BSP) fittings in the USA, so I could get rid of some ugly plumbing.
Also used the Permatex #2 on the the fitting threads to prevent leaks - the pump instructions say not to use sealers, but they leak otherwise!
Back under the car. The clip leads were for a pump test run.