dehumidifer will run constantly and put out tons of heat, air condtioner will pull out moisture and cool your room and has a hose to send hot air from unit out your window. Do this fast cause if you don't have the green board dry wall in that room you will grow mold in your walls and have a ton more problems biff. Skip the dehumidifier and get portable ac unit or window ac unit, the portable units will dry room out quick.
Living in midwest humidity is high but my central air unit keeps humidity in house down to 38 percent and my old house was built in 1920's without insulation in walls. I have 125 gallon tank and 75 gallon tank running with no humidity issues.