Shock Question

I have been given a pair of the Penske red shocks to try on my '84 Citation FV. When I went to bolt them on, I discovered that the VW mounts are all 12mm and the shock is 1/2 inch. So I went to a machine shop and asked about making shims to adapt them to the existing mounts. He looked at me like I had lost my mind.

So what is the best way to accomplish this? I am hoping for a temporary fix since I may need to go back to my original shocks if these don't work out or if he doesn't want to sell them.

Any thoughts?

Thanks in advance!

Shock Question