2nd AC size

Thanks all! The unit is pre-wired for electric but not ducting. Should have mentioned that originally. So it would be a direct vent for the second. We have a front bathroom which currently has a vent and the bedroom has a vent. The factory vents can only be aimed not closed. So I intend to replace those with vents that can be closed helping cool the main living space and the bunk room more and then open all when we are on 30amp and can only run a single. Most of our camping is <90 F but being east coast it is often very humid. Anyway, sounds like most would for 15k for the bedroom. Maybe I add a box fan during the day to blow bedroom air out into the living space to help.

Thanks again all!