Swamp cooler. = a $20 plastic storage box and soda bottles filled with water and frozen. It is adequate for ales in all but the hottest conditions.
You need to control your fermentation temperatures and pitch the right amount of yeast.
So you can go cheap on the storage box and ice fermentation chamber or extravagant with a freezer or mini refrigerator and sheet foam chamber.
Making starters is easy with a DIY stirplate and a 2l flask.