Hello Five and thanks for your post.
Only John Juarez has it right--good for you, John!
Depending on the type of building that you are hoping to buy, the builder may not be able to sell you a home without the amenities in place. In California, no new home may close escrow until a "Certificate of Occupancy" or COC is provided to the developer by the local building authority. In the case of a new home, part of what makes a home "ready for occupation" is the presence of floors, cabinetry and other amenities. So while you may want these to be left out so that you can later install the items you want at presumably cheaper prices, unless you are planning to buy the home for cash, the developer will not be able to sell the home to you.
Your better bet in negotiating a good deal is to pay for just the "standard" model home (so that a certificate of occupancy can be provided by the City) and then have the upgrades installed at a later date.
If you are planning to purchase a new home with a developer, bring your Realtor with you to negotiate your deal so that you can ensure that you do get the best deal and can prevent making errors that can jeopardize your negotiation strength!
Grace Morioka, SRES
Area Pro Realty
San Jose, CA