Here's a take on the old Citroën engines Godfrey used to build. These are the kind of cheap, old style engines NordicX want to revert to.
https://www.racetuners.com/building-...ians-thoughts/
I don't really understand how starting with a DI engine block is going to have any impact on the build cost. According to the grapevine, a modern VW direct injection engine is more than twice the cost of the old Pipo engines PSRX used to run. And the Pipo engines would leave this one far behind.