Frank, if you need the vacuum motor on the left side of the air cleaner housing, you need C8OZ-9D612-C. This part is discontinued and there doesn't seem to be any reproductions out there. Sorta surprised as this part saw use starting with 68 428 CJ cars and was used on several performance and police cars in the 70's. At this point not a lot of options. You could try
http://www.perogie.com/ I've used them before when obtaining some Shaker parts for a friend's 429 Torino Cobra. I was told they offered a rebuild service as a lot of original air cleaners were pitched over the years resulting in a lot of hard to find parts. So would probably be a good ideal just to call them and plead your case. They are proud of their parts so make sure your sitting down when talking prices.
Another place to try is
http://www.henryspartsdepot.com/ I don't know how current or expensive his inventory is. I've never used them before. They do show one C8OZ-9D612-C, so probably be a good ideal to call and see how proud they are of it!
Good luck!!