Verpine, a personal favorite are coming out in the strong holds of resistance book. Otherwise I'd like to see the following in no particular order. Givin, Draethos, and Umbarans.

Regarding the Original Question: After about four months of playing in a fully realized game that use aspects of all three of the currently available rulebooks (EotE, AoR, F&D Beta). This is with both a GM & Group new to the system, we've had not serious problems and outside of one disconnected PC who's missed a number of sessions due to RL concerns the game has been quite successful.
 
My instincts and experience tell me that assuming that everyone's keeping track of their own stuff, then two of the three is the best combination. At this time in my game the group has basically eliminated their obligation and it's sources and are contemplating taking on duty. The morality mechanic was easy and fun to introduce as far as I was concerned as I like that kind of Morality Tracking system. Now as GM I've been keeping track of the various numbers myself as well as my players keeping track, so some of the issues with accounting may accrue.
 
Kudos to FFG and the Playtesters for making such a wonderful game that even a group of D&D hounds can dig on a Star Wars game. 

I tend to agree with the viewpoint that Mando Armor is just heavy battle armor. The various widgets and extras being attachments or add on equipment. For example one of my players wanted a wrist-mounted flame-thrower using the attachment in Dangerous Covenant. I house-ruled a pistol sized flamer weapon for him to use and it only took five minutes of comparison to get something that seems to work.
 
Regarding the force rating 2 issue. I'd only say yes to that if you as a GM were granting a starting "Boon" to all the players as I've done n my current/first game of EotE. Two characters chose a free dedication talent, one chose to have a extra-force rating die, one wanted integrated weapon systems, (Our murderbot.) and the final player used his boon to gain a cloak for the PC's starting ship.
 
TL;dr: Know what you're player's think something is. Then try to work with them. No on the extra Force Die unless all your players get something comparable, and even then I'd only do it for a first game to get some excitement going for it. Though I have two or three players that aren't as big of SW fans as me and the others in my group.