Most of what you want to do is not difficult. if you have a general or better license, it is all within your skill range. You just need the details. However I am wondering about your initial assumptions.

I have done a lot of disaster work, Katrina and more. The first question is who do you want to talk to and why? During most disasters, the HF bands are like a major contest or field day. I would not want my only comms to be 40/30m QRP. Especially CW only. Unless you have a specific comm plan that will work under those conditions.

This is especially true if you intend to back-pack the rig. Space and weight will be very precious. I have thought about this for several years and tried various options. What I want is a good general coverage receiver and a good commercial/ham vhf/uhf HT rig with assorted accessories. Actually I carry two dual bands. I won't go into details about my choice, just playing the devils advocate here. I also have a FT-857d in a box, but that is another story.

But that is me. You obviously have other needs. I am curious as to how you intend to use the radio you mentioned. Neat rig though, and I would love to play with it. However is just does not seem to me to be appropriate for the intended use.

Oh, all my Ht's are USB charged. I have been living off the grid for more than 15 years now so we can talk about that later.

Not trying to be picky... just curious about your intent.

Nomad