I would like to mention that it might be more wise to go with a 25.5'' neck. With a 24.75'', the bridge pickup is not on the most ideal spot, but a bit more towards the neck, so you kinda miss out the great harmonics you get on that spot. with a 25.5'' it is on the right location. Just a very minor, but important detail.
this is due to the fact that the bodies are routed already for a 25.5'' and the 24.75'' are really, conversions. it works, no intonationproblems, and if you can live with that, no biggy. I have 3 of such guitars, and I have no problems, but it is something worth thinking over. what do you want more, 24.75'' with a neckback 'kinda' what you like, or 25.5'' with what you want?
ps: one more thing: why not take a 24.75'' with a fatback, and have a luthier reshape it? if you have a neck that needs no finish, its a super-easy job, and most likely, dirt cheap. My luthier/painter/inlayer-dude did it for...
free!!
(but then again, its not fair, cause he's a friend of mine).