The idea sounds neat, inventive, practical, do-able.
Makes sense. And the rocks would not be discarded after one use in one place. At 3 inch diameter, the priests/builders/foreman/stonecutters would simply find it easy to just pick them all up and take them to the next site.
I agree. The stones (if actually from Wales, and if not moved most of the way by glaciers) could make a good bit of the trip by water, and these tracks could be moved from behind the moved stone to ahead of it, continuously. The Egyptians moved stuff way heavier than these pipsqueaks over the nice soft sandy soil (including waterlogged soil near the Nile). :’) The largest of the Egyptian moves was a 650 ton statue of one of the Ramses, but the largest obelisks exceed 300 tons.