[Elecraft] K2 with external KPA-100/KAT-100 box possible ?

[DL1EKC@VFDB.net]

Dear Elecrafters,
Dear Readers,

I'm currently running my K2 #2206 with the options

      - KBT2  - KAT2  - KSB2  - KIO2  - K160RX  - KAF2  - KNB2

(the version with least air inside, I think :-)

What I would like to do now (and some OMs in our local ham club, too) is 
to build the KPA-100 and KAT-100 and combine these into the EC2 enclosure. 
The idea is to keep the K2 in the above configuration for easy field use 
and simply connect the "power/tuner box" to the unit at home with a piece 
of coax and the control cable (to KIO2 Aux I/O). I plan to use (one of) 
the normal BNC-output(s) of my K2 to feed the KPA-100 via an additional 
RF-IN at the rear of the EC2 enclosure.

Would this configuration be possible? I'm not sure, if the firmware is 
able to handle this setup. Critical points may be:

- two KIO2 units present the same time. Could I simply omit the second one 
in the KPA-100 module ? Or could I connect the "power/tuner box" to AUX 
I/O and my rig to the I/O of the second box?

- two ATUs present. I could manually deactivate the KAT-2 via the menu 
(set to CAL P). How about automatic switch-off as soon as the KAT-100 is 
present?

- What about the length of the control cable ? Do I need signals that 
normally aren't present at AUX I/O ?

Are there any more drawbacks on this?

I think this setup could be interesting to many OM? What do You think 
about this?

VY 73 de Marcus, DL1EKC