I found this oil temp gauge and it is extremely well priced compared to the $129 + ones I have seen advertised elsewhere.

http://www.getgeared.co.uk/moto-detail_Motorcycle_Oil_Temperature_Gauge_No_29


EFI Speedmaster, Stainless Ride Slash Cut Silencers. Fly Screen. Oil Temp gauge. Crystal clear headlight. Drilled stem Oval Mirrors. Short Sissy Bar & Rack.