After messing about for the last week or so, going back and fourth between Google and people's suggestions I managed to get an energizer working with components found in an old inverter.
Bought an ignition coil, had an arduino lying around, found two capacitors and a N channel mosfet controlled with the arduino using blink :o, a couple diodes and a transformer and boom put my father on his ass... Completely by accident mind you but anyway it works none the less
My next step would be to try hook up an alarm so that if it shorts to ground or someone cuts the fence the alarm will sound. Thought of using a toroidal transformer and measuring the magnetism with a hall effect sensor but not sure how to go about it.
If anyone would like a rough sketch of the circuit I would be happy to help. No one should have to struggle like I did... Also if anyone thinks of a good idea to measure the voltage drop or current drop or a way to detect the line has been compromised please let me know, would appreciate it...