Did you mention what type of pool....it seems too cheap for gunnite, but i know houston is pretty price competitive. Liner price would seem okay, and fiberglass would be too expensive.
Also you are asking for "bids" when the industry is red hot right now...Most builders that are good are sold...
Just wanted to give a quick introduction. I'm a designer and builder located at Phnom Penh, Cambodia, so hopefully I can help some people out with questions about a pool in the tropics, while learning some new information too.