I found this on ebay..
http://cgi.ebay.com/5-Small-AC-Timin...QQcmdZViewItem
They are designed for 60 Hz, so the speed here in Australia would be 20% lower. But it only means that the Haig mount arm must be 20% shorter.
120V AC power supply voltage is easily dealt with by 5kOhm, 2W resistor in series with the motor.
B