to put a single coil tele pickup on a dot studio at the neck?
I believe it will fit in the humbucker route. You don't have to worry about the depth or length so much, but the width (perpendicular to the strings) might be a concern. As long as the routes for the humbucker "ears" is wide enough, the pickup will fit.
but will it leave gaps, thts all im worried bout
You're fitting a single coil where a double coil humbucker once was...yes it will leave gaps. If you want to cover the gaps, make a custom pickup ring.