NO one is trying to beat up on mike. This is a forum and people will have different opinions and that's the best thing about a forum.
Be honest I said that you are "implying" that if the work is not accomplished within a certain time frame that the workers are incompetent or lazy. If other say the job could take eight hours and your come back is that non-lazy workers could do it in four hour that is implying that workers that would take eight hour are lazy.
Have you ever actaully done one of these big chandeliers ( similar height and weight) in four hours ?
Thank you for the earnest reply and I mean that sincerely. I can assure you that if that is what was perceived, it was a misunderstanding.
I've installed several chandeliers at 2 story foyers and I can't say one ever took 4 hours. Every time an elder passes away around here, one of the kids wants grandma's chandelier moved to their house. The most we ever had to do was install a 2x4 over the ceiling joists and that was if it was changing from a fixture to chandelier. The one in the picture looks small to me (15 lbs?).
To me a big chandelier is one that requires structural modifications to the building and a crane/ motorized lift to be installed. And then you need structural work, power & controls for the crane.
Last summer an associate I do business with told me he got a bid to hang a chandelier in the foyer of his house under construction and the bid was $3,500. I went and looked at the job and told him the bid is a fair deal. The height was 3 stories, it did need a crane to be installed, and there was structural & electrical work to be done. That was the basis of suggesting OP consider all these things.
In OP's picture, there's already a chandelier there. If it's changing out same size for same size and it's not a disaster to assemble, it's an easy job. How long do you think he'll be up on that scaffolding if this is the case?