The first production run of K and S series was over-subscribed by our vendors and we are shipping them as fast as we can right now. Perhaps allow two weeks from now for shipping (slow in these COVID-19 times) and for our vendors to get some experience with them.
There would not be much saving by excluding the reclocker, less than 10%, so we did not consider it a meaningful variation.
HQPlayer is an oddball one. Best to install HQPlayer Server Embedded on the Server engine and HQPlayer NAA on the Player engine, to get the benefits of separation of duties.
The confusing thing about HQP is that they call it a server when it is actually a renderer when used in combination with Roon. My understanding of this is based on the Antipodes user guide for installing Roon/HQP (v2 software). This was a very nice document, hopefully it gets updated for the new software.
If using the Roon/HQP combination I would of thought you would have your Roon core on the server engine and embedded HQP on the player. You would then run HQP with the Alsa back end, unless you want to switch playback options, in which case you would run Naa. The HQP renderer is a substantial improvement over Roon Ready for my Chord TT2. I never want to go back to other players so I run Alsa mode for the simplest installation possible.