Actually I don't think that it was called an Agitator, if I remember correctly that name was only used for his 1/12th and 1/10th pan cars. I believe what you have was just called the Advanced Engineering RC10 conversion.
Many years have passed, and I admit I might be wrong but...........
I will look to see if I have any pictures that I can add to this thread over the next few days.
Team ORCA / ORCA USA / Pro Spec
Serpent America / Team Serpent S411 ERYX / On Point Racing OP12C, S120 / Xceed Products
Hangar 30 / Seattle RC Racers
Fasttrax Racing Series / NORA On Road Series