Sorry for the late response I just saw this. I’ve spent many many days and nights at KSC over the years. Super awesome place to visit. There’s basically two elements to visiting: the visitors center and the bus tour. Really need to do both. The visitor center is very nice and has the MUST SEE space shuttle exhibit nowadays. If it costs 500 bucks to see it, pay the money. They did a spectacular job staging the orbiter and if you have never seen a spacecraft up close, suffice to say it is impressive. Especially a space shuttle orbiter which remains by far the most capable space vehicle ever created.
The bus tour is a must because you’ll see the operational facilities of KSC and you will brought to their Saturn V rocket display. They have it installed in a really nice building and again it is expertly displayed. This is not a mock-up, it is a real honest to goodness moon rocket that was built as flight hardware for an Apollo moon mission that was later canceled due to budget cuts. They also have a nice Launch Control Center mock-up and mock launch sequence.