Wanted to share this in case anyone is in the market for one.  Someone's posted a 3B2/400 to eBay along with many documents and some peripherals and such.  Kicker is it's $2,000 altogether...

https://www.ebay.com/itm/186237940947

Way outside what I'm wiling to sink into one, although a 3B2 would be very nice to have around.  Anywho, figured I'd spread the word in case someone in the far flung UNIX-verse is seeking one and has the funds to spare.

- Matt G.