Not sure you will have enought time to use an Alt strain since those typically have to be lagered after primary fermentation. I am not saying it can't be done, it just may be pushing it. You may be able to pull it off with a california/San Francisco lager strain, but will have similar constraints.
Your best bet will be to use a large pitch of WLP001/WY1056 and ferment cool around 60F. IMHO