I had no problems switching to V's from Canti's on my Ritchey Ascent. The fork brake bosses were positioned properly. You will need noodle(s), and likely cables/housings. The brake levers for the Canti's won't work well, if at all. The Tektro Eclipse 2.1 worked for me, but any levers specific for V's should do. I don't know how the current rear cable/housing is routed on your bike, but it should be doable. Good luck! The V's are definitely better, IMO.
PS: I used the Tektro's because my rear brake is a U-brake, under the chainstays. This is NOT compatible w/V's, as there is interference w/the chainrings or crank. Thus the Tektro "universal" levers. If you don't have this rear brake setup, please disregard.