Sounds reasonable to me.:D
I am running LA style fabricated aluminum covers with the Magnum rubber over steel gaskets on aftermarket heads with a hydraulic roller, so I don't have those kinds of problems any longer.
It's a daily everywhere car so it needs to be low maintenance.
One messed up thing I found when I had the 318 and used the fabbed covers was the valve cover rails are not flat front to back.
They are higher in the center by about 3/16 inch, so I had to get creative about making gaskets for them.:D