Well, I did it. I was on eBay, bidding and buying Analog magazines containing some of Paul's vintage Sci-Fi, when I managed to absent-mindedly buy both the December 1972 issue of Analog, containing "Pard", and the entire set of 12 1972 Analogs. I only needed the one containing Paul's story, but the set of 12 was reasonably priced. Too bad I didn't remember I had bought the one I needed just minutes earlier.
Anybody interested in taking the 12 month set off my hands at my cost including shipping, PM me and I'll let you know when I receive them and make arrangements.
While I'm at it, I did the same thing last year with "Wheels within Wheels". I have two copies of the first edition. I'm holding onto that though, in hopes of using it as partial trade for a Gauntlet first of "The Haunted Air".