AT-43/ Help needed building armies

Guys;

 I want to take full advantage of FFG's sale and build full U.N.A and Therians armies for AT-43.  So I turn to you my fellow gamers in seek of your trusty suggestions.

 This is the list of miniatures I have for the following armies:

U.N.A

Therians

Which miniatures should I buy for each army?

Army list suggestions are most apprecciated.

I'd also like to inquire about the Karman army, they are just so cool looking but I wanted to know if they are really underpowered as some claim, what are their strenghts and weaknesses and any suggested army lists.

 Cheers;