Hi Vanessa, The body and neck will go together however, at times the neck pocket can be larger, but nothing that cannot be shimmed, if thats needed either PM me or email if you need any details as to how to do it. It shouldn't have any adverse sound output. With bolt on neck its a quick op anyway to see if you want to fine tune after fitting or if you are not comfortable with the outcome its easy to abort the idea. There are quite a few decent places that sell necks here is just one of them.
http://www.warmoth.com/Pages/ClassicShowcase.aspx?
Body=1&Spotlight=1&Path=Neck
Fenderphil