how about something like this?

Cheap portable air conditioner - Delonghi 10,000 BTU PAC-C100
romdog11 Reviewed by romdog11 on . A/C system Im having heat issues in my space. i was thinking how much would it cost to set up a mini ac unit specifically for that one area. its just a closet so it would only be used to lower the temp and thats all. anyone know? Rating: 5