Keep in mind that there are several ways to skin the cat and that this is my way; feel free to improvise as needed....
Order part number 57001-1188 from Mamma K first.... It is a brass oil pressure gauge adapter as used by their service dept, but it has it's own special thread and fits to the left side of the engine oil pressure log. I cut off the small special threaded end and drilled and tapped it out to 1/8" pipe threads. From there I simply acquired the needed fittings, hose and gauge. My gauge is mounted nearest to my left knee and once riding/moving I do not look at it....
I'll post pictures later...