Jim:
Take a piece (even a chip) of the paint into a hardware or paint store that has a scanner (our local True Value has one). They can mix an enamel that matches. I'm in the process of fixing up a Craftsman lathe and managed to skin off a chip about the size of a dime for them - the paint matches perfectly, is really tough (like tractor enamel) is sprayable and can have a hardener mixed in it...
Paul:
Is the back side toward the front of the tractor?
Dave S:
I was meaning no disrespect to you - during my 40 years in IT, I spent a lot of time helping people help themselves (I ran operations of a large computer network before the Internet, we were charged among other things with end user support). I always found it more profitable in the long run to help people find the answers themselves rather than give them an answer that might NOT be totally correct in their situation. Hope you find the right combination... I would put the head and all accessories on and drop the bolts into what you think are the correct holes without turning them and look at the height - if one is sticking up way above the others, chance are that it's in the wrong bolt hole...