Ah yes, looks like we were all waiting for Mouser to stock up again! I have eight of the same part # coming to me in the mail as I write this, I figured I was taking a chance at buying them, but I'm happy to know they will be correct!
I found that part # on this forum from Timo, and he pretty much says everything you did, but there was never a confirmation that it was absolutely correct. Thanks!
Now, if someone can help me find the Headphone/Sustain/Controller PCB, then I'll be able to mark "Mission Complete".
EDIT: The potentiometers came in, I've attached a photo of them so everyone can see!
Save yourself some money and get them directly from Mouser at this link.
On Ebay they go for $7 each + shipping. Same for Syntaur. I bought 8 of them for under $20, with shipping, from Mouser.