Thanks all.. I think I found it.
I think it's AR26813. It's hard to tell from the diagram, but, what it had done was rub on the firewall and looks like it wore a fine cut in the line where it goes through the FW. I power washed the heck out of everything under the dash, and, it was much easier to see/clean with the hood off. I pulled up all the nasty old oil soaked foam and was able to see it pizzle out when tractor running and I pulled that line off the firewall. I managed to boot it with some rubber hose and a few small clamps until I can get a new one. It doesn't look super pleasant to replace, but, it's also not the worst line to have to replace in there.
I figure the boot will last for a little while, at least. No more rapid dripping, though, I need to let things settle and see how low the hyd fluid is, I had it topped yup yesterday and just moving a few hay racks around and doing some cleaning left it below the fill line--we'll see if my boot works once it's full.
Tim: I was able to see that little loop of rubber hose, it didn't go where I expected, however, it looked to be in good shape. I was pretty pleased to see that the oil was, indeed, dripping down on the cylinder and not seeping from around it!