GST SUCKS! I paid $750 per car and it only took 2 or 3 days for the truck to get here once it left CA. The only thing I paid for above and beyond the price of the car itself was the floor mats, $55 for documentation fees, and something like 8 bucks for CA tire fees. Not extra junk added to the car and no other state fees or taxes. All licensing and taxes is taken care of in TX when you register.
The discussion at http://priuschat.com/forums/prius-v-main-forum/101986-order-factory-wait-times.html might prove insightful. I even posted in that thread about what my dealer in CA was doing in 06. Not sure how much of it still holds true today.