1 Set (4) Yakima "Control Tower" Towers - $60
2 Pair (4) Yakima Landing Pad #1 - $20
This setup is basically brand new. I used them for 2 weeks this summer on a rental and no longer need them. No SKS lock cores or bars, just the towers.
Check out Yakima to see what it fits. I used this setup to attach to the factory rack of a Ford Excursion. Different Landing pads will allow it to fit different cars/trucks.