We don't have any truely cheap motor control kits at the moment, but this is something we are investigating. I highly suggest you wait a month or two, as we have a big announcement coming up about a kit that I think would fit your needs. A word of warning, initial quantites of this kit will be limited because of some supply issues with some of the parts. If you want the kit I highly recommend you order it as soon as it comes out.
If you really need one urgently, may I suggest the Picollo Control Stick. It retails for $39 at the TIEstore. Also, keep an eye on TIDeals. They come up with really good deals. The Picollo sold for $33 last week. It is now sold out.