Should I expect a discount from dealer for buying and installing complete system

I am getting ready to purchase a complete Home theater system from my dealer. It will probably end up at or over $17000. I am buying all the equipment from him and they are doing the install. He sent me the proposal today and I was surprised that there was no package deal. All the equipment which includes a receiver, a 9 speaker Atmos system. I may only need 7 if I can use my already installed rear ceiling speakers, cables, 65" TV 4K DVD player some other things I need. plus speaker stands. It's a complete redo of my home theater and will require extensive installation as my home theater room was done when we renovated and the room was frame. All the wiring is hidden behind the walls and all the equipment is in the closet. A lot of holes will be drilled and crawling under the house and going into the attic to do the work. Am I out of line to expect a solid discount on the equipment?
Thanks,
Bob