Cyborg Weapon Arms

We are preparing to start a game of TME.  We are each generating 3 characters at the Gamemaster's discretion.  One of the characters I generated is a Cyborg and I rolled Weapon Arm twice. As a group we are of a split mind on how this looks.  Some of the group feel that both of my arms have been replaced, but as I read Weapon Arm it sounds like it only happens to the Non-Primary arm.  This lead me to believe that I just had 2 arms that I could change between but still had my normal Primary Arm.  If I do have both arms replaced (and both legs as I got Tracked Locomotion as well) then I don't see him being able to survive.  He wouldn't be able to reload or even eat by himself if he has a gun arm and sword arm.  I was looking through the book and couldn't find anything about a prosthetic arm beyond a short blurb in the weapon arm description.  Just wondering what some of your opinions were on this.  I know I could lose my Dominant arm during play, just like we could lose the character as a whole, but I was thinking that during character creation you should at least be able to do the skills you roll up and without arms I don't know that that will be possible.