Found a decent paint for less than a mil ?

I am going to end up repainting my car (hopefully in the spring) and have been looking around for what is available, and for how much.

I see Tractor Supply Co has high gloss Alkyd enamels in gallons for about 25 bucks plus tax.
They also carry the hardener designed for the Alkyd paints.

I will be using red like the car had OEM, but since they have a few different reds I'll be tesing them to get the closest one.
I'll also probably be doing it quarter at a time with the hood and trunk lid removed when thier time comes.

Apparently it's a tough decent quality gloss that holds up pretty well in sun and weather, or so says a lot of the reviews I have read.