A cab from the Cleveland (via a limo company, which was the cheapest) runs around $50-60. I don't remember CP ever offering shuttles to the bus station -- you were on your own for that one, and a City Service cab -- well, figure $10. The best bet I'd say would be to take the bus, it's cheaper, and really not so bad from Cleveland. Now, from central FL, yuck. 49 hours on a bus was not my idea of a good time! :)
As for how to get to HR, if you have a cab they'll probably know themselves from their experience, or else the toll booths will direct you. Better than confusing yourself trying to remember turn left, right, upside down, drop 300 feet and land at the park op office! Sheesh.
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PO!NT OF VIEW - A Different Look at Roller Coasters
http://www.crosswinds.net/~justmayntz/thrills/