Your list of inducements seems pretty decent so far (depending on stamp duty contribution)
We purchased a new build just over 3 years ago and negotiated stamp duty fully pain, free turf, flooring, a garden shed and they paid our legal fees (providing we used their preferred solicitor).
Other people I know have also managed to negotiate a contribution towards moving costs and integrated appliances if they aren't already included.
With regards to a survey our mortgage provider required us to have a full survey which we felt was pointless given its a new build but that's what they required.