Thanks guys, and particularly Geoff who dragged me out for the wander up the road to this location. He makes a guest appearance in the shot at about 8 o'clock
Just camera on tripod. Eyeballed the overlaps, trying to make sure 30% overlap or so. Went around in s circle for row one, then stepped up but higher and went around in another circle and do on. Wasn’t very scientific, just made sure each panel overlapped top, btm, and sides.
Processing/stitching was done with MS ICE. Just threw all the panels in there, and chose which projection. It seems to do a pretty good job.