In this day and age of RNP Runway aligned instrument approaches you could easily write a MOS that just required survey of the approach and missed approach and runway strip splays. Have it designed as no circling and that's it, nothing else is required really for it to be safe for RNP IAP operations. I don't see why a non certified aerodrome can't have runway align RNPs if those critical areas alone are maintained. You could quite easily install cameras that monitor these zones for periodic remote inspection and double as weather cams.