[Elecraft] On the horns of a dilemma - upgrade K3 to 100w or buy KXPA100+ATU?

[Jim Lowman]

Sort of talking out loud here, but all opinions are welcome.

As the subject says, I'm debating as to whether to buy the KPA3 module 
to bring my K3 to 100w, or spend about twice as much for the KXPA100+ATU.

The K3 and KX3 are so similar in specs and capabilities that I think 
I'll be using the KX3 only for Field Day and other portable operation, 
with the K3 as a home station.
But the KXPA100 offers the possibility to use it with my K2, K3/10 and 
KX3, as well as other QRP radios in the shack, such as the FT-817 and 
the QRP++

Dumb question:  I have the KAT3 ATU Installed in the K3.  Will it handle 
100w if I upgrade to the KPA3, or will I have to replace it? I didn't 
see an ATU with a higher power rating on the Elecraft order form.

Thanks for any thoughts and 73 de Jim - AD6CW