3 story house plus 10’ chimney just for a rust job. Don’t think I can get a lift to it and at $700 per day wouldn’t be worth it. I would feel better about it if I had repelling gear. Roof is steep and will be a mother!
It is not our place to decide how much our neighbor will spend to get his homes curb appeal back. Even if he decides to have the chimney re-coated, it should be cleaned first anyway. Name your price and let him make the call.