Dan,
Sorry to be hard to reach. We've just moved to St. Louis Park and the world is still a bit unsettled. Yes, get a set of cam cover washers, 6 fiber, 2 aluminum. I am not sure if anyone has shims in town except for me or maybe Ed. In your shoes, I'd call a few places like the guys out in Mound/Spring Park and see. Checking clearances is pretty easy so your guy can check quickly and then you can shop for specific sizes. If you're really in a pinch, you can borrow my sets. I'd not be surprised if your clearances are just fine as is.
No trips planned due to move and other busy schedule stuff.
Reach me via work email:
greg.mack@lfhi.com
or
612-741-1327
Gmack