I have two GRT Legacy ARHS systems (ARHS + Magnetometer) FS.; when I upgraded my GRT WS boxes to HX, I upgraded to the Adaptive ARHS systems; Both systems were in good working order when removed and they were operating in the dual ARHS mode.
Both systems for $600 or $330 each, shipping included contus via Paypal.
Email me for Pic's, screen shots and info at blmarzaa(at)gmail(dot)com
Thanks Barry