I don't think that shim is included. If you ordered the starter and you are in need of that shim, call up IHPA to see what they have on hand. I ordered up a used one from them for my 73 beast as a spare. The one I pulled off, came out in two pieces. I don't think it's in production any more. And only used would be available. Unless you can find a nos(new old stock) part.
If you're in a real pinch, can't find one, and in dire straights to get one, I might be willing to work something out. Berkeley is only about 5 miles or so from me.
Do you drive a dark forest green Scout II? If so, I saw you driving down fairmont ave by el cerrito bart a few months ago.