Hate to say it, but if you want to get into sporting clays, go to a sporting clays range!
Seriously- you can't even begin to replicate multiple stations, angles, speeds, etc. with anything resembling a throwing machine, at least not one or two, or more, of them.
Find a friend who knows something about sporting clays, go with him (her) to a range, and you will be money, time, and experience, way ahead.
