So, I appreciate the scaffolders now want to come at 7.30 am, but I can't magically guarantee they'll find somewhere to park*. I'd hazard that will be unlikely before 9 am when people leave for work (I did arrange with a neighbour to use their space, but I can't exactly order them to go to work early).
*we live on a narrow hill, and the turn into our driveway is ninety degrees, so the biggest thing you'll get around that corner is a van; the lane behind is all private and there's no public parking and all spaces are guarded zealously.