4 years ago, we had a Ford Flex rigged to tow. All Blue Ox, w/Air Force One braking system, a charge line, & the car's height required a drop adapter for the receiver. The total bill was $4300, of which $1200+ was shop labor.
In addition to saving the labor, we could've saved by shopping parts online, instead of paying retail to the shop. However, after seeing the disassembly & cutting required for the install, I chose to pay a professional to tear into my wife's brand new car.
The entire job took about 12 hours.