Possible paint codes and names in order of likelihood is as follows.

931 Sunflower Gold or mustard (name seems to vary depending on the region) 23577
920 Gold Poly 23576
938 Sahari Gold Poly 23615 (this is a 1972 colour. My car is from 1971)

I'm still trying to work out the colour codes for the rocker cover and alternator adjuster arm. I can't remember if the engine mount brackets where also some sort of blue. I may have figured out the colour code for the air filter cover but am not sure. Any advice or suggestions would be great.

When I get the chance I'm going to see if I can get some paint samples mixed and do a comparisons myself but I have no idea about the blue for the rocker cover. Mine was stripped back and resprayed black many years ago by someone and is now flaking so I was thinking about getting it back to stock colours again so any help would be amazing.

If I find out in the meantime I will post it here to help others if need be.
Thanks everyone.