I don't know anything about this builder but I found this link a while back that lists pricing range for different pools. Hope it helps!
http://www.platinumpools.com/swimming-pool-prices/browse-price#/sites/default/files/imagecache/photo_album_main/water-features-platinumpools_0.jpg

You're right, Brenbury, about there being a lot of factors involved. In this picture, I don't see a spa, so a ballpark price would be upper $30's/low $40's. A lot of the price depends on the selections you make. If you are using flagstone on the decking to match the pool, then that adds cost. There are a lot of different types of interior finishes that vastly affect price. Type of equipment, automation, remote controls, cleaners...these are just some of the factors that effect price. I think this pool has about 5 -6 tons of moss rock from the photo. How much is actually there will cause a lot of price variance. There may be higher cost in prime preseason/season months based on the amount of demand the PB has. There really is no savings in the winter. Building in the winter often costs me more money, because bad weather/rain adds additional costs. Cash and financing is the same thing. One month for completion is reasonable depending on weather and what type of decking material wanted. That does not include any HOA or municipality approvals that have to be obtained. A city pool will take longer to build, because you have to start and stop for inspections. I don't build as far as Huffman and cannot recommend anyone, but hope this information helps anyway.

A pool like this should take about 4 to 6 weeks to build (weather permitting of course). I would agree with the previous post that the pool shown may run upwards of the 30-40k range. Flagstone decking does run high but choosing to go with a flagstone overlay or spray deck finish may be most cost effective. Opting out of the flagstone deck will reduce price considerably. As far as a "cheaper time to build" winter months might save you just a little but as long as material prices stand firm, there isnt much room for deductions. If youre still looking for a builder feel free to email me at abysspools@aol.com.