Oh mate that it too hard for me to figure out without having it in front of me to have a fiddle. Perhaps a member here who has pulled these apart many times will follow. You have done a good job with the colour coded lines you have added. I think it pays to use a camera and/or jot down notes explaining each step you took in dismantling, so you have a guide on doing the reverse when reassembling. I took apart a carburettor of a Valiant Regal this way, and my notes were vital for me to put it back together. Unfortunately my attempt to clean it out didn't cure the flat spot, but at least I was able to get it back together again with ease.
It also helps to sketch a rough diagram of what goes where.
