^i'm with jonathan (feline) on the cost thing- you can get a guitar with a good floyd (washburn x40 pro is one, ibanez s470, or rg1570 are others) for not much more (it's about £350-£450 for a guitar with a good Floyd, new, if you know which one to buy) than the cost of chopping up your guitar, and they have good floyds attached- and that way you have two guitars.
I know if i was in that situation, i'd probably just get a guitar that had already a good floyd, since for about £100 more (max) you have another guitar. (bear in mind, I suck at DIY, if you can do all that routing etc. yourself, as jonathan says, it's a more attractive proposition).