AIBU to ask how much haggling I can do on a new build property at the moment? It's a new development in the middle of nowhere, first phase. I was hoping to ask if they would pay for our stamp duty, as it doesn't look like it will complete until October which means we won't benefit from any of the stamp duty holiday. There's also circa 4K of 'upgrades' we would like - is it at all possible that they would say yes to paying for both? Or one particular option over the other? Any advice would be appreciated. Thank you.