Herb Deeks' models can be purchased from "Swapsale" at http://www.swapsale.com/models12.htm
The last address I have for Herb Deeks directly is: Herb Deeks Models, 1516 E. Santa Ana Street, Anaheim, CA 92805.
I have purchased several of them (the Flash Gordon rocketship in my avatar here is one of them) and they are very good quality, but some experience in resin modeling is helpful. The parts require the usual cleanup and finish fit adjustments, but with time and patience you can turn out a very nice model.
Here is a review of a typical Deeks kit: http://www.starshipmodeler.com/was/pre_d_rocket.htm