We are in Pensacola, Florida and are enjoying our Catalina 22 but it just gets so very hot. If we did a cruise up the coast of FL staying overnight in Marinas along the way, would it be ok to get a small size air conditioner and run it in the cabin overnight? Has anyone done this? I figure we could pick up a small a/c unit from Walmart and be cool and comfortable at night.Would love to hear from anyone that has done this.thanks,