The only concern I have with the oil pressure gauge is the hard to see location and the need for an oil line in the loop.
Has anybody tried to hook up an
electric oil pressure gauge and sender . I googled this and came up with this site as an example.
http://www.deftracing.com/prosport_gauges/Oil_Pressure_Gauge_Electric_w_sender_Amber_White_52mm.htm . That way the gauge can be placed in the dash or on the handlebar with only a wire running to it. Much cleaner and easy to see, plus it can be lit for night use.