it sounds the same to me. if you rip the audio of that side I'll record the real record and line them up in a multitrack program so you can confirm / deny your suspicions.
Also, if I were bidding on this item, I would be pissed that someone so explicitly pointed it out (yes I know there's another thread about it but the explicit title of this one, plus you being super excited about something else on the record, would probably incite even more people to look and maybe bid). I probably wouldn't make you a recording because of it. I'm not trying to be a jerk, I'm just telling you what most winners would think.
Also, I know that sweet soul collectors aren't going to drop hundreds if not a thousand dollars just to get a slightly different mix of a cheap record.
A better strategy would be to put in a bid at the lowest possible amount, which will be automatically outbid. Once you get a bid in you can get the ID of the high bidder and send them a message pleading your case (or offer a little money for a recording). If you really posted wanting to find out the high bidder you can PM me and I'll let you know how to get it (not that it's a huge secret).