I know my following statement is not the way guys approach it very often, but:
I have a beautiful dk blue cab, near mint, with rebuilt monitor.
Let's assume that was $100, though I could sell the monitor for $150 and the cab for $100-$150 no problem.
boards $110-$150
wiring harness (dokert)$85)
power supply $42 shipped
bezel, marque $80 shipped? haven't found these yet
control panel populated $100? not sure on this one either
How much do you think I can sell my dk for when I am done with it?
I bought an empty qbert cab(converted actually) a few years back for $15. $$700-800 later I had a beautifully restored qbert.