I have a 1957 Oliver super 88, that has been painted a few times from previous owners, and it's current color appears to be John Deere green with red wheels and a yellow grill. I would like to go back to the original, or as close as I can, and in some of my reading of Oliver &quot;stuff&quot; it appears that some models, especially in 1957, were painted green. Everything but the grill. How would I find out if my 57' should be all green or not?