We already have a roof above the door in place, so it would just be the posts and framing underneath to be added (it’s a sloping roof though not pitched like his one).
The posts would be anchored into an existing step which is the same width as the roof.
Have already had one quote which I thought was far too much, based on my own research of materials, which would essentially be 4 posts and some cladding to go on the underside of the roof plus associated fixings etc.
Just thought I’d get some opinions before getting more quotes in