I have the 1/48th scale Type IX 505, too, by ScaleShipYard.
The 1/32nd scale 505 does not have as much detail and I think that the mold is not in as good of shape as the 1/48th scale mold.
Maybe Lee could come forward, if he is a member on the forum?
BTW. I am going to laminate two sheets of oxygen-free copper sheet on each side of a carbon fiber sheet and then cnc router cut out all of the deck details. I have a carbon fiber supplier that has a 12 ton laminater press that said that he can make the sheets for me. This is the same method for making high-tech PCB boards for computers. This makes a very strong, stable and solderable deck surface and under deckside for fastening fittings and hardware.
I will most likely make a few at a time.