Trust me, I know. I used to make this stuff for a living.

Again, it is how much you want to pay.

Labor is the bigger part. But with cars, the paint is not cheap. Good paint is quite expensive. I just looked up a high quality primer from my painting days and it was priced at 25.75/pint. Not gallon, not quart, pint. And that was primer.

There are very good reasons that systems like your friend uses at his Macco shop cost a lot less, but I cannot give the details because I do not want to reveal any company's trade secrets.

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2010 Toyota matrix

'93 500 SEL
A bad addiction. Takes all of my cash.

'12 Volvo S80 T6
Needed something that wasn't as hard to deal with as my bad addiction

'18 Mazda Miata
No more boring cars for everyday transport!