I'm not sure how much price of vinyl compares to clear bra, but I had a custom wrapped clear bra done to my front end, rocker panels, and rear diffusor, and it cost about $2500. That was not the cheapest, but it was from a reputable shop that does good work and has had great post-job support in dealing with a few things that have come up.
As the labor is more or less the same, I'd assume a full clear bra from a good shop that can warranty their work would easily be $4k or more.