[Elecraft] K4 questions!

[eric norris]

Within shipping groups, will the K4D be available as soon as the K4, or later?
To use diversity rx with the K4D, does the second antenna have to be connected to the RX ANT port, or a second ANT port, and do you need the internal ATU to get multiple ANT ports?  Can the internal ATU be assigned to an ANT port, or is it always assigned to ANT 1?  

73, Eric WD6DBM