Thanks, everybody!  I tried to contact Schurby, but don't think I managed it.
I did buy and download the 1936 AM  from Daz.  It's got some problems.  It's a four door, and the trunk shape is different, but it's the best I've found yet.
I do appreciate all the help.  I'll keep trying to find Schurby.  (btw, the picture of the 1937 Plymouth above is very similar to the one I'm using.  But it looks like a four door, too.)  Thanks, thanks, again.