I have 2 Celestion Vintage 30 speakers: 12" and 80w.

yes a dilemma, I know...

I am trying to work out if I should make a 2 x 12 cab or two 1 x 12 cabs... or 2 1 x 12 cabs that can be made into a 2 x 12...

To help decide, I have a 100w Fender twin reverb, and a 20w Orange micro terror head