My Winegard originally had a C/Ku Chapparal Corotor II, which I still have BTW but I'm not using. What I have on mine now is a "no longer available" DMX741 C/Ku combo LNBF. The closest thing to that now is a
Titanium CK1S. If you use the Corotor II, or similar with a servo motor on it then you'll need an ASC1 to control it. I use those "cheap" dish controllers found on fleabay instead and use the C/Ku Combo LNBF with a 22hz switch. When I switched from the Corotor II to the combo C/Ku LNBF I didn't see any measureable difference between the two. Your mileage may vary though.
Ku reception is pretty decent as I get most of the stuff others get. Again though, your mileage may vary depending on how well your dish is tuned.
I see it has a Von Weise mover too, which is great!! Those things have a nylon lead screw nut in them that wears out over time but IIRC you can still get those from Von Weise if you need one. That or you could replace it with a
brass one like I did a few years back.
Ennywho, that dish was a good find and I hope it works as well for you as mine has worked for me.