hi.. we have a 2004 bredal k85, not very fancy{non isobus} but does us well. i was considering getting a teejet gps controller to connect to the bredal for auto stop/start and decreasing amount when reaching an angled boundry etc just wondering if anyone is using this system? we have a spare trimble ez guide 250 would that work instead or does it need to be the teejet?