You may be cheaper hiring a baby telehandler. When I was doing my roof a few years back a hired a small Manitou, foot print as small as a family car but could do 2.5T to 5M. I think the week cost me about £300. I could have borrowed a full size one locally but having the small size really helped and I wasn't under pressure. The other good thing about that route is if the hire place is local you can drive it on the road to the site.