If you can do it the way that @Luke said, it would be best. If not, there are concrete curb stops that can support the bottom of your ladder. If you’re using stabilizer arms and it’s at the right angle, you might be able to clear the over hangs. When doing any ladder work, KEEP SAFETY IN MIND. I definitely see another way to clear those awnings with a ladder and I would feel safe with it but the safety trainer part of me doesn’t really allow me to share that idea. If you can’t get it with the pole, then remember, some jobs are best to pass on. Practice with that excelerator though, some guys would fly through that job.
I can move pretty darn quick with my ladders but if you can master the pole, you would be much better off!