Sadly, where the H8K2 "Emily" fails critically is in the artwork department. Not that the data isn't available, it is (there is still an Emily in existence), but in the amount of work required. The Emily is so big and has so many compartments with gunners in them that the art work for the Emily would be something like doing the B-17, B-24 and Lancaster combined.
Ok, maybe just the B-17 and Lancaster.