If the survey doesnt throw up anything major, I don't think you should renegotiate based on standard home maintenance needs. If you want perfect, buy a new build and enjoy running through snagging.
Question, do people negotiate on new builds or just accept the asking price?
I'm going to be contrary and say that they're probably asking what is reasonable, it's just everyone else has become ridiculously numb to the process.
Imagine spending whatever it is you spend on a home that basically ties up all your money costs a fuck load to sell on, and only looking at it once!
It's fucking batshit.
But yet somehow it's an unreasonable request.