That's a great looking grader. We've got an old 50's Huber Warco that has an old 471 Jimmy Diesel, works great. If you aren't doing production work constantly old graders are still great ways to go I think. They'll last a long time and work great for years to come, plus they're easy to fix, no electronics for me not to understand!
Boy if I were in Maine and needed a grader I'd be all over that thing. Looks great!