I priced my Bonneville for one of the precut kits online and it was under $300.
Here's the link to one vender that seems to have alot of different models available.
http://www.clearmask.com/
I think I'll get it once they have a precut kit if it isnt too long of a wait and have it done over the winter. I doubt it's something I would want to take the time to do myself and collect all the necessary tools and supplies to do right.
I like this strategy the best over a traditional bra.