Cool stuff! What years were you involved? Most of my stuff is from early 2000's. All my controllers are 27 or 75mhz and take the crystals.
I have 1/2 dozen of these Ofna 4wd buggies
I have enough parts to make 2 of these
Thunder tiger EK4's I have the blue and the purple bodies
Has a 11.49cc engine.
A Traxxas TMAX 3.3
Still have new, unassembled 2005 9.5 mbx in the original satchel case (Purple chassis)
Those helicopters are bad ass!