I would have to say parts for the Hyper line of buggies including the 7 should be available for atleast another 3-5 years if not more. Look at the Ultra line of buggies OFNA has out, which is the same company that distributes the Hyper, they have been making that line for about 10 years so I dont think you have a thing to worry about............other than the radio and servos
Excellent choice by the way