Hi, I have taken the engine out of my 2wd Saph and put it in a 1964 105e Anglia. I have had to use a MK II RS2000 sump for clearance, but this has meant I can only get just over 3 litres of oil in it. How can I increase the oil capacity? Am I able to fit a larger oil filter, oil cooler or some kind of reserve?

Many thanks in advance!