You preface it with being 100% healthy and there is a ways to go for that and possibly includes additional injuries.
If we play along and assume 2 catchers will be involve. Swihart is very likely to be first in line if he keeps hitting anywhere near where he is now. In my opinion that leaves a pick between Vaz and Leon for the 2nd. Either is servicable. I think Kinsler will make it along with Nunez. Depending whose hitting remains acceptable either Holt or Pearce will be selected from.
I think they will keep Brasier and Kelly, provided Kelly gets form back.
That's 24 of the 25 so one of Pom, Workman, Pearce/Holr, Leon would fill the roster in. If we go 12 deep in pitching then Workman and Pom get left out and possibly Leon.
A lot can happen in the interim and we have to see how people perform down the stretch.