Thanks guys. The stitching took a while because the file I ended up with was 900 Mb in size. Even my 8 core computer with SSD disk and 16Gb of memory had a tough time chewing on that. Unfortunately, this is a crop. I had to cut off the bottom part because the railing of the fence didn't align at all unfortunately.
The stitching itself was easy with the automated Photomerge option in Photoshop CC. No credits for me, I didn't do the actual stitching