If I lived out west somewhere I would definitely invest in a set up. Seems pretty pricey though. Voile has a set up, board, adapters and skins for $1200. You still need to have your bindings and stuff though.
There is a company i read about in SLC that will convert your regular board to a split for you. They measure it up and run your baby through a band saw then put some hardware on it to help put it back together (I know, this is the overly simplistic view). Don't know how they would put edge material along the inner edges though.
Not sure if this is the same company: http://www.mnttechnologies.com/index.html