Hey guys, new here. I recently inherited a 1958 Oliver super 77 with a 6 cyl diesel. I am NOT a diesel mechanic but I am ok with my own vehicles. This tractor will definitely run but it's been years since I can remember my uncle using it. He's been gone 1 1/2 year now so it's been at least that long. It's in his shop and there are no batteries in it. I'm wondering what I'll need to do to get it running? It has a spot for 2 batteries. What size should I use? The serial number of the tractor is 28289-705 but I looked it up and it is not listed anywhere. Any help would be greatly appreciated!