They can definitely meet, but they won't be able to pass through until like the 25th or so, I think!
And I think your 2nd question was answered on disc; to recap, if it's blind it by nature would probably be a shitty fighter so he wouldn't hold that much interest, but maybe one of the others might find a use for it? There is a good canonical reason Vargas doesn't care much about magic users so unless he found an actual
use for it in terms of putting it to work for the SoS it's doubtful, but I'm also happy to have them meet and just see if they get along IC and if he thinks of anything after that?
@sora