Garry, you can order the CD right here at Mudcat. Dick Greenhaus can order it for you, and as he has gotten me UK CDs with the price in pounds still on the sticker, (I'm in the US) I'll bet he can do the money conversion for Oz the other way. The US price is $12.98, and if my link doesn't work, you go to the top of the main forum page and click on Mudcat Shop and Auction. He has 4 Joseph Spence CDs, it looks like.
Blessings,
Barbara