Uh sorry I mixed up Talus with Talius ( While I mend to say Talus. but Talius is actually a ghoul in boneyard library sublevel..) Anyways, You already got what's available for common mortals. However if You're on to powergaming and min-maxing your character there is a way to obtain more than two sets. However it requires Fixt-enabled, shitload of sneak and lockpick skills ( probably around 150 sneak + stealthboy and 200 sneak could get you through after several reloads, Electronic Lockpick won't do the trick, as the door are sepose to automatically open themselves, and with lockpick they don't). I'm talking ofcourse about hacking BoS armory door. You have to succed on first attempt, or BoS folks go hostile. Save b4 is adivsed. This is FIXT addition, as originally it wasn't possible. There are extra PAs inside ( two exactly) so a total of four PAs in game to be owned. Exactly the number to outfit player's team.