Dak....
Welcome to the Redcat Family...Glad you're havin Fun! Dont give up on the Buggy and dont let the LHS folks discourage from thinking for Yourself!
Here are a couple links for you that should help you find compatable parts for your Buggy.
http://www.rcuniverse.com/forum/m_4068240/tm.htm
http://www.rcuniverse.com/forum/m_49...tm.htm#4966838
http://www.rcuniverse.com/forum/m_42..._1/key_/tm.htm