Standard fuel pressure regulator on a B230FT fuel rail is the same as on B234F.
Fuel pump? Can't go past a new Bosch 025 external pump, which is OE for the B230FT. Not cheap, but relatively cheap insurance for reliability. It flows 120 to 200 litres per hour at 3 bar, and 1000 to 1620 cc per 30 seconds according to the Bosch data sheets.
https://www.ebay.com.au/itm/112895506961
ECU to match EZK? Try Turbobricks if unsuccessful here, the USA had thousands more of them than OZ.