Update

2 x Servomech actuators gone
1 x Team Delta interface (the big one) gone

I can confirm that I now have the Roboteq AX2550 HE controllers back from Roboteq and rather than repairing them they have simply shipped 2 NEW controllers from the US. So.... now have

2 x BRAND NEW IN BOX Roboteq AX2550 HE controllers for sale - £375 each ono