ST3000

[albavoyager]

I have an old ST3000 unit and the control head has given up the ghost the motor for the wheel unit is working fine. Am I right in assuming this control head can no longer be repaired? Assuming that is the case if I was to replace the old control head with Evolution components would they be compatible with the old motor unit. I don't want to change the wheel configuration if possible. I am a sailing boat. If my suggestion is possible can you list the parts I will require to purchase.
Many thanks.