HoK paints are automotive lacquers whether it be a bottle paint or spray.
(1) Does the body need to be prepped with something first so it
doesn't eat it or not? Use primer first
(2) Will it work over Tamiya primer? What primer will work? Tamiya primer highly recommended but any automotive primer will work.
(3) What will I use to clean my airbrush afterwards? Lacquer thinner.
(4) What can be used to clearcoat over it? Any clear coat except for maybe Krylon's.
Anything else you can think of for a first time user that might be a
trap. If airbrushing HoK, Gunze's thinner seems to give best result.