I know this mod is dead and deprecated, but I was wondering if it would be possible to ask for a similar compatibility mod for Castra and the mod Avatars, which does similar reskin things without using the Skins mod. Avatars run into the same issue of being unable to craft certain items thanks to Castra, and the mod authors for both of those mods do not appear to have updated either in a long time.

About 2 weeks late, but here it is! I did support for all mods instead of just Castra, since I was actually interested in Avatars a while back but never checked it out. It lacked support for most of Space Age entirely, so I just did it all at once here. You should be able to just add it to your current save no problem.