No, I still prefer a single shot (min 2400x36,000px for 20dpi, max 4800x72,000px for 40dpi). The problem with stitching is that the files will be quite big, and I don't know if my pc can cope with that. Especially since I will loose some edges here and there, so the renders should be much larger as well.
Also, with stitched images, I can only turn the camera and make a half circular panorama. So the sun will rotate with the views. That might be interesting in a circular exposition, but on a large straight wall a sun in one position might be more realistic.
Like this: