In terms of HEP none of this is correct but I like the idea of it
Honestly *my* actual labor is about $6000 to $6500 unless there is something more involved and it includes materials like paint and clear sandpaper,etc so it is far less profitable than projected.
There is also equipment, maintenance ,taxes,insurance,permits,power ,bookkeeping and more all to be taken out or paid for by the labor charges.
It is not as profitable as it should be at all and getting worse as the cost of other things rise but I just like the freedom it affords me in my daily life.

No problem here. If I don't do it no one else will .

http://www.highendpins.com/pricing-services/

I have tried different things over the years but the best way I find is just to do it all myself because there is always a bottleneck when it comes to doing the playfield and more involved cabinet painting .
Anyone can gut the games and many can put them back together but the other stuff takes much more time and talent so I typically end up overwhelmed with just that part if I try to do a production based set up.
My oldest son is 18 and getting pretty handy in some aspects though sone hopefully there is some future there.