I don't know but I just want to say that I'm supposed to discuss pay with my boss this week and I have no idea how much to ask her and I could use some help figuring that out if anyone wants to after you've gotten your answer
Sounds about right with some wiggle room to talk them down a few hundred. It's specialized work and doing it right takes time. You might see if you can do some of the demo by yourself to save some money.