I am new to the forum, and was needing to ask if anyone has run across a Slingerland 1973, copper over wood, 8 x 12 tom, also needing a set o matic arm. I have the set, 6.5 snare, 8 x 10, 10 x 14, 14 x16, 18 x20, and 14 x 24 bass, need the 8 x 12 to complete. Thanks for any help...