Most likely team;
Randolph
Coleman, Duffy, Keogh, Brady
Browne, Arter, Hendrick, O'Dowda
Maguire, Long
I don't think there's likely to be any experimentation. It'll be close to full strength and lots of experience. Probably a back 4 with the full-backs pushed right on. Diamond in the middle with Arter holding, Hendrick and Browne in front and O'Dowda floating off the front. Long and Maguire up front.
Hourihane, Doherty and McLean or McGeady will get off the bench. Maybe McGoldrick or Curtis off the bench either.
I just can't see there being any major experimentation. It'll be experience and form, even though it is only Gibraltar. Mick is not there to build anything, it's a one campaign stint, he won't take any chances.