On my 2000 magnum with the LA Trickflow heads. I am useing PRW 1.6 Roller rockers and Smith Brother push rods thst allow push rod oiling. There are only a few rocker arms that will do push rod oiling. PRW, comp and Harland Sharp. Then you get into the high dollar T&D and Jesse. If your magnum is a 95 you might of lucked out and got a magnum block that is still drilled for for LA head oiling.
Also unless you don't want to mess with the short block right now. While you have it apart I woukd put some KB 107 pistions in it. They are around $300 from summit. They are a flat top pistion with valve reliefs. Thsts what I have in my 2000 360 magnum engine. But those pistions, felpro 1008 head gaskets and the 60cc chamber of the trickflow head. I am right at 11.1 compression..I race my dakota on 93 pump gas. For the rocker arm set up I would get ahold of Mike at B3 racing engines
Thats wear I got my rocker arms kit and push rods. He is great to work with and won't try to sell you something you don't need.