got my gauges from gaugeplace. also got a fitting kit from them that does away with the sandwich plate. its basically a braided hose with a thread at one end and a t-piece at the other, the t-piece screws onto where the original oil switch is, the oil switch then screws into the t-piece. then just screw the other end to the sender.
a lot easier to fit and no leaks or mess as you dont have to remove the oil filter.
deano666 fitted mine give him a call....