If Ibanez started the pricing on CS builds with the base price of the respective original model and raised or lowered the price based on the construction type, body specs, neck specs, wood, electronics, etc, etc. would you buy one?
Find your favorite model, find the price(MSRP) and think about it. I can tell you guys that the SR500 is $733.32 and IMO is worth it. A CS that starts at $733 sounds pretty good to me right now.
LOL. The only reason they sell a regular bass for that much is because they make 5000 at a time. To change one thing would be someone has to pull it out and make it specific for you. The extra labor would bring up the price significantly.