I painted my 65 in my garage , it turned out pretty nice. I used acrylic enamel single stage. Dust is a issue, the best advice I can give is to plastic off the area used for painting and wet the floor down. Hope this helps.
I would advise against wetting the floor down...because if the water starts to evaporate you might as well give up....I may be young but Ive painted every car Ive ever owned (21 cars one for every year ive been alive. and one of them like 12 different times) and i only wet down the floor one time and the paint bubbled around the rocker panels because of the evap.