tips for spraying primer

hey old vart thanks, you seem to know what you are talking about....i could always get the p-sheet from my paint supplier when i go buy another gallon, but if you could find out i would really appreciate it....so if i do thin out the high build when i spray it, how many coats would i need to cover the entire car so that i fill in the solvent pop and still have enough to sand for the final blocking? and will one gallon be enough for this?

thanks
Matthew