Suggestions on new rocker arms?

I have discovered after doing a valve cover gasket that I need to replace one of my intake side rocker arms I figured I might as well upgrade into a whole set what would you fellas recommend.

the rocker arm must be warped because it has a lot of play but is torqued to the proper setting I'm pretty sure it got worped after I overheated it for a long time yesterday without realizing it.

I haven't noticed any performance problems or durability issues it just sounds like a tractor now it sounds exactly like a 6bt Cummins, that's actually funny because I had a guy at Walmart ask how I got a diesel into a Cherokee.

the picture is the one giving me trouble I am able to push that particular rocker towards the firewall and pull it back towards the front of the jeep but like I said it is torque to the proper setting just looking for a good set of replacement rockers that won't break the bank that would be a little better than stock at least.