machine shop?

Usually, the cheapest way to get everything you need is to buy out an existing shop where the owner is retiring and motivated to sell.

Then the price will vary(greatly) depending on how recent the machines are.

An old school shop with old school equipment can be had for pretty reasonable money........ if you are patient, and are willing to travel to go get the stuff.
This will not be top tier equipment, but can often provide decent results from a skilled operator.
The problem with old equipment is that it's OLD . In today's market you have to be fast accurate and cost effective . $350,000 should do it , not to mention the building