Which valve covers to go to

I broke a TFS stud and the shaft. So I have been working on replacing the shaft and stud, broke it at the end of the hex.
I also add B3 rocker alignment shims. When I started it today there was a ticking noise, which gave me the dented cover. I used the two gaskets the first time because the rocker adjustment studs hit the cover, mostly in the baffle area. Things must be really tight under the cover.

broken stud.jpg