New construction analysis, making sure this is fair

[Teho Kim]

Hello,

I know that new constructions aren't a typical thing on BP, but for my particular niche it is what me and my business partner are going with. That said, before we sign the contract our builder has given us an itemization of the construction. Is this a figure that can be negotiated? Does anything look out of place? Appreciate any insights! 

House is in suburban Oklahoma for a 4 bed 3.0 bath.