The only sources we can use are those at https://wiki.openstreetmap.org/wiki/Australian_Data_Sources#Western_Australia which are CC BY 4.0 with a waiver marked as green which includes selected Main Roads WA open data which is CC BY 4.0 and which Main Roads WA have provided OSM a waiver for -> https://catalogue.data.wa.gov.au/dataset/mrwa-road-network. This dataset is already in editors as a background layer, which is fine to use and indicates Grimwade Road, so no problem with that.

travelmap.mainroads.wa.gov.au -> personal non-commercial use only
landgate.wa.gov.au -> all rights reserved
Google Street View -> not permitted

We can't use any of those.