They will have allowances built into the contract for each of the variables and you just have to keep up with what you are going over on lighting, flooring, etc. At $150 a foot in today’s market you are looking at very basic levels in lighting, floors, closets, counters, etc. I would be a little worried and go ahead and get that detailed breakdown as well as the basic cabinet layouts, shower layouts, etc and see how workable it is and where you need to spend extra. Then don’t get stupid or be prepared to pay for it. We just did a pool and are working on a pool house and master bed/bath addition. My wife went 40% over on the pool without changing the size and she’s blowing the other two by about the same because apparently when she looks at tile, counters, lights, etc she automatically picks the most expensive f-ing option available. I think we’re at $200 a foot just on the pool house.