yep... Read several york OBA builds from google. it's a great start. Onboardair.com is a good place for the bracket and the clutch/pulley on the york and the alternator. They have EVERYTHING you'd want but can get pricey. Figure out what you need and then shop around online or go to Home Depot. Many of the same fittings are out there. Kilby just is more convienent. And that word comes with an increase in $. Looking at the pic you'll most likely just an alternator pulley from onboardair.. The pulley on your york looks pretty beat up though. Either clean it up enough that it wont eat up a belt or source another from the yard. The york and the tank are the cheap parts of the system yet the heart of it. All the money comes in from the fittings, bracket, check valves. etc. Kilby has a good 2.5 gal tank but you'll only get about 5 seconds before your tank is depleted and your york kicks in again. IMO if your not running an arb or plan to use air tools, and only plan to use it for tire filling, dont bother with a tank.
Dont bother with a rebuild kit. They are cheap enough that if it dies on you in the future, so what, get another. If you have an air tight bumper, you can tap that and use it as a tank as well. Also the york gets hot with continuous use. In only a few minutes its to hot to touch. I ran 3/8 copper tubing off the york and wrapped it several times to act as a heat sink. Works well...
As mentioned do a google image search on york oba diagrams. Some people have put up some good schematics of how it should be done. It's what I followed 10 yrs ago and the same set up is working great for me.
There is also a tap and plug mod that keeps oil from blowing into your lines. Google that as well. Easy mod.
If @ 1st you don't succeed, grind it, hammer it, weld it, drink a beer and try again.