I have a month before I give it a go, have watched every available youtube video on the subject and now looking for any available advice there is.(other than "don't do it

Ordered this gun as it claims to work well with oil based paint.

Was figuring something in a fine rustoleum or the like.
Primer first..??
Clear coat on top..??
Better paint choices..??
Am I even asking the right questions..??
Thanks in advance...