It's the same as the 197 with cup chassis on this chart. Any decent motor factors should be able to mix it up for you (mine did and it was a perfect match). Cost me around £6 for 100ml as that was the smallest amount they could mix.
Just remember that its is a water based paint so be sure to top it with some clear lacquar so it doesn't wash off. I just bought a spray can of clear and sprayed it into the lid until I had a small pool which I then brushed on. You can barely see the marks now.
Nope, it was just a local place where mechanics get their parts. I'm not sure where you live but if your in Northern Ireland like me I used North Down Motor Factors on Jubilee Road in Newtownards.