Frigidaire 5,000 BTU Window-Mounted Air Conditioner, Cools Up to 150 Sq. Ft., Quiet Operation, Effortless Temperature Control, 2 Fan Speeds, Auto Restart, White

You'd probably be amazed at what a window A/C unit or portable unit that vents out of the window could do in a small space like this if you insulate it. $125 to cool a 10'x15' space. https://a.co/d/03ioK2PV