Let Jones go.
I think he's a solid player and better than what some people give him credit for, but he isn't much of a playmaker and he's going to command a fortune.
I'd focus on Cooper, Quinn, and Cobb in that order.
Cooper will command a lot but he's young and very very good. I think the road problems have a lot to do with how drastic the change in philosophy was between home/road games under Garrett.
Quinn was very very good and easily the best and most consistent pass rusher. I doubt he'll command a ton of money. I'm guessing you could probably bring him back on a 2 year deal at 6-7 mill per. If Lawrence bounces back, and I think he will, this will make for a fine pass rushing duo. Couple that with a difference-making NT for once, and I think we'll have our must disruptive D-line since 2009.
And finally, Cobb was a stud. He would've performed even better with more seasoned offensive coaching. With McCarthy coming in, I think there's an excellent chance he'll return and like Quinn, I don't see him commanding a ton.
After those 3, I'd focus on one all-star caliber player at either safety or NT, then find your other top contributors in the draft.