id224299, we have the Mini-X kit and all replacement and hop-ups available in the Shop here:
http://tinyrc.com/shop/products.php?pid=4
We're the primary US dealer for these, and offer more parts and better support than anyone else you'll find! Honestly I would say to use the full kit as your basis, as you'll save a ton of money by getting the electronics and everything in one package. If there's anything specific you need to help you with this project, just ask!
