Regardless of which anal retentive final designation 190D...
Nothing anal rentitive about it. The 213F which powers the D-13 AFAIK is very different from the 213A of a D-9. What I find amusing at times is your total inability to admit that you are wrong. I'm quite sure you initially meant Allen's D-13 aswell but accidentally said "D-9". Simple "oh I meant the D-13" would have sufficed. No need to make up stories about some super secret D-9 which is already has a Jumo in running condition which you don't want us to find out about. If you don't want us to know about you wouldn't have said anything in the first place.
To others,
According to Sandy Air Corp. there are only four original wartime D-9s in existence. Of course mounting a running Jumo into post production example like the ones Flug Werke are doing would be the same thing as far as sights and sounds are concerned especially considering that very very little of the original material could be saved anyway especially for a flying example.
Mikael Olrog's excellent site keeps tabs on surviving axis aircraft:
http://www.preservedaxisaircraft.com/. It also lists only four surviving D-9s. The D-9 now in USAAF museum is the best surviving example. The rest are/were in very poor condition and lot of new fabrication is needed to make them look like a complete aircraft.
Sandy Air Corp's website is interesting aswell:
http://www.sandyair.com/
