I used the fuel pump originally installed by Morgan in 2013. It has 6,000 miles of use on it. There are no markings or model numbers anywhere on the pump. it's a centrifugal vane pump. The pump that I will put back once the testing is done, is a Walbro gear-rotor design. A well known brand with a track record of reliability.
If the old original pump is still working when I'm finished, I keep it as an emergency backup.