There are several people in your neck of the woods, Dunnyrail above on this thread for one, who might be able to help with the CV problem. There are a lot of us who have embraced Massoth kit so there is a bit of 2nd hand MTS, look for a 55015 controller. I tend to shop at GRS, check their website they usually have a lot of 2nd hand kit for sale. I have found playing with the electronics great fun and can spend ours in the Fat Controllers office when the weather precludes running bollocksing everything, but eventually it get sorted!