Yeah at this point I need to find a local store that carries PPG and at least get the mix formula for the paint in PPG. I was able to confirm today that Sikkens has no formula for LL1.

One of our painters at work is certain he can mix it with Sikkens if he has the mix formula for PPG, because it will allow him to cross-reference all the various colors and toners.

I may be easier to just go buy PPG paint but nothing beats having a buddy who is a painter that will spend the time to tint the color and do spray outs until I'm happy...