NO NO NO, I must disagree to agree with you. Single stage spray can paint is as good as womens nail polish.
2 part auto motive paint is good because the colour chart is out of this world and the paint is pretty good lately..... It however costs 100 dollars for the smallest amount prepaired for you.
In a spray can you will want an epoxy paint. krylon etc have it in limited colours. next best just enamel with even less colours available. The smell of enamel paints will remove humans in 100 yard radius for many hours.
Most paint proffesionals have probly no idea what epoxy paint is. so good luck.