You got a good deal and it will serve you well, I bought my 580CK new in 71. over 8000 hours and yes, the meter still works, at least when the cable isn't broken. You'll need a really big torque wrench to rebuild the cylinders. I rebuild mine on the machine so I don't need a huge bench vise. When I need to work on hoses under the valve bank I remove the hoe, surprisingly easy to do, and block it up, makes access much easier. Mine is a 4 speed hi lo range standard shift but I had a 680 of similar vintage and the shuttle shift worked great, just a pain to fix if it breaks. Have fun!