I don't know where the K2 #5542 ended up, I'd love to find out where it is now….
The K2 had several options : SSB / 160m & RX antenna port / 60m / Auto-ATU
I contacted Elecraft yesterday - the K2 is shown as “Back order, waiting parts” - to check that they aren't going to discontinue it and received a reply confirming that they have no plans to discontinue it at present. Kits will be available as soon as the parts arrive from suppliers - typical of the global problem with semiconductors at the moment.
I decided to “get in the queue” for back-orders and placed an online order for the basic K2 kit and the 160m/RX antenna port module. Sadly the 60m module is no longer produced, and I have no interest in using SSB or digimodes with this K2. I want it as a pure CW transceiver.