350 HP 318 Build

$133/HR for assembly is crazy high if it's a one man operation. Half of $133 is $66.50 a hour.
standard shop rates in my area are 100~125 an hour, so for specialty work that's not insanity or out side of the realm of reality.

hourly rate should not be a reflection of how many people your operation is. i don't see a correlation for that.