I had my Challenger CL10V3 professionally installed. Boom truck put it inside my garage, 2 Rotary trained and certified installers had it up, lubed, adjusted and fully functional in 2 hrs.
There were no scratches or scrapes on the lift [ Challenger, delivers with their own trucks], there was no damage of any sort to my finished floor.
Install started at 8am , they had finished ,cleaned up and were gone by 10:30, and I was using my lift that afternoon
Total cost including oil and the electrical connection [240v was in place] was $550. I felt that was a good value , and the added benefit is, it's easy saying no when someone asks to use it, because they didn't help me with the installation .