I recently completed a photographic backdrop of 40" x 108" for a diorama artist in the Phoenix area. He is looking to do a similar photographic backdrop for a diorama in WY, picturing a famous Indian battle. You'd need to do an on-site panorama shoot from the actual battleground, do the finished editing to fit the diorama setting, and find a printer to do the final size on canvas. I don't check LL all that often for replies so please email me at
lou@louoates.com and I can provide contact info. You can see the finished product as an example here:
http://www.louoates.com/HTML-NEW/Diorama.html