... Truthfully though, the Galaxies are just too darned big. It doesn't sound like a fun project, it sounds like a tedious project.
Sounds like a job for some kind of WikiCAD application where a group freely contributes time to laying out complicated 3D models. You might not be interested in closet spaces on deck 13, but I promise you there's a geek out there somewhere who would delight in the opportunity.
Unfortunately, there are also scoundrels out there who would put obscene materials into a Trek model -- or worse, Star Wars stuff! But, a properly maintained wiki is also one with editorial policies to deal with ruffians like that.