do it yourself and learn
I agree with the others here, a top is very simple to make, certainly no more difficult than making a cabinet.
Don't think you have to get it exactly right the first time. Everybody seems to like different set-ups on their table and there is no way you will know what you like, or don't like, until you try. The hardest part will be the cutout for an insert (if you go with an insert), but it will be good practice learning to use your new router. Or you could just bolt the router to the underside of the top, many say that is the way to go anyway.
For your first try, don't even worry about what you have read about a laminated, multi-layer, super-flat, super-slick show-off top. Just make something to hold your router and see how you like using it. Learn by doing!