I took my plugs out of my motor on the stand and realized that I did not have the screw on ends on the plugs. I installed them to get a better idea of how the 997 coils would fit. They actually sit a little higher than shown in my pictures. This makes things a little easier as you will not have to clearance the valve covers for the coils. I also installed my lower plus and found the same thing. It looks like a simple bracket using the valve cover bolts could easily be made. Rothsport's billet valve covers would be much more expensive I would imagine.
Rothsport Valve covers grabed from another thread:
