Small block alternator spacer

Need the small spacer than goes between the head and the alternator on small block (340). I am removing an aftermarket a/c compressor and the braket for it was used in place of the stock spacer.

Thanks.
here's the whole kit from Mancini racing $11.95 plus shipping.

http://chucker54.stores.yahoo.net/19lasmblalmo.html