Portable AC's will work .... I bought a used 1 for $50
at a garage sale .. came with remote and attachments ... 8,000 btu... all I had to do was make a window bracket .... and use a 1 gallon jug for drain pail .. 2300 watt ( $300.) Generator with 2 1/2 gal. gas tank ... runs 10 hours on 2...