Was able to follow the Kattamorda from Bickley to near Victoria Dam, Canning Rd, up through WNM to Patterson Rd, Walnut Rd. Followed the new version of the Munda Biddi from Walnut Rd alongside Lockwood Rd to Gungin Rd, then Mt Gungin. Then the tricky section past the powerlines and via "Mercury St" to the Dell on Mundaring Weir Rd, followed the KHT most of the way to the Weir, with some slight detours around the Aborigines sign section, and the Bibbulmun track near the Weir dam, to the Weir Hotel and Jacoby Park, then followed the KHT closely up to Mundaring. The last 90min was nocturnal with a headlamp, and total time on the trail 5hrs 4minutes, with strava moving time listed as 4hrs 17min. It rained a fair bit, but was a fairly successful UP run, and probably the most accurate UP run in recent times, although the section near the Weir was slightly off track in a few spots.
A significant milestone, but still more to be done to have a more accurate UP run in place, but this was very close to fully accurate to the 1988 route in my opinion. An accurate DOWN run with less MundaBiddi deviations is a logical next mission along with some minor tweaks to the UP run route.