Need advice on fixing broken rocker stud on Big Block..

[bs46488]

I'm looking for some input on how you would fix a broken rocker stud?

I just got my project truck back on the road and have driven 48 official miles. First 10 miles on the road the truck just died and i ended up pulling all the old MSD 6AL stuff and putting in a HEi. Then I have been fighting a power steering issue and finally resolved it. Drove the truck yesterday to test out the steering fix.

I was just cruising at about 30, then the truck started to sound like a misfire. Drove home and put it in the garage. Tonight I pulled the valve cover off and found this rocker in the wrong place.

Can I just replace all the rocker studs with some ARP, new adjusting nuts and hit the road?
Or would you do more? The rocker and adjusting nut with the broken stud inside of it was sitting in the valve cover, do I need to worry about metal debris? Or other damage?

The engine came with the project. I know it sat for 6+ years with the previous owner (and I've been working on the truck for close to 3 years) It's a 454 bored .030 over. He gave me a cam card from Crower. And under the valve covers are these fancy looking red rockers. Has a Holley 750 carb.