I agree Matt308- not too bright in an old aircraft, for which there isn't an abundance of parts. One B-17 has already been taken off flight status due to a broken spine. If I were head of that foundation, that pilot wouldn't fly the Fortress again.
Reproduction DB601 engines wouldn't really be practical. Although, I suppose one could be branded and built for a number of uses. If a similar engine could be built to run inverted, it could be used for......
Irrigation
Motorsports (tractor Pulls, Boat Racing, etc.)
Experimental Aircraft...