I've taken the switch out and gave it a thorough clean, seems to be in top nick. I suspect I might have to take the dash out
I did order the narva H4 conversion kit as it was on sale for $85 delivered on ebay which is a good price the rrp on them is about $110
That relay looks huge but seems like quality stuff, I just got the normal 4 post ones, nearly done with putting the relay together so far costed about $40 worth of electrical stuff like wires, socket holders, plugs etc but it's looking good. Will post pics tomorrow I am just missing a few crimps and these plastic things to cover the wires which I am picking up from jaycar.