I was investigating the availability of oil metering pump adapters on the market which provide clean oil supply rather than used engine oil.
There are a couple of options available that are essentially a sandwich block blanking plate with a separate oil supply.

After studying the original FD OMP, I noticed there is a bung at the base of the supply oil gallery which is also open to the engine oil supply port..

If anyone has a sound understanding of how the OMP works, I’d like to hear any comments as to why this plugged gallery couldn’t be converted to a supply opening where clean oil is provided.
A 1mm thin blanking plate sandwiched between the engine and pump would close off the engine oil supply, and the new port added to the existing pump gallery becomes the oil supply.