Through Macclesfield Forest and Wildboarclough to a first stop at Meerbrook with its visitor centre cafe. Then over the Mermaid and Flash Bar to the Laundrette cafe at Buxton.
The return to Marple involves a very fast drop into the Goyt valley (care!) and some slower climbs before after Kettleshulme.
Not all controls have 24/7 options so you should choose your start time accordingly. You could also record your progress as a GPX file and submit that for validation.