I think the real problem with this subject, along with things like the Star Destroyer, is people wanting a "kit." It would be far easier to just build a one-off (and that wouldn't be easy by a long shot!). Even then, you have to 1) figure out all the kit parts, 2) figure out the correct proportions/structure, 3) FIND the darned parts, and only then can you 4) start building. Now, add on top of all this trying to find a way to reproduce/cast the finished result. Yikes! That might end up being the biggest part of the challenge IMO.
I know there are ways to do it. But, when something has a lot of thin, flat panels, isn't the finished result just bound to warp? Unless you want to use a huge, heavy hunk of resin, but that has its problems as well (this thing is BIG!). Then, of course, there's the multiple layers of embedded kit parts. Sure, some can be molded. But, to get it right, you really need to mold a lot of individual parts, vs piling them on and molding a bunch at once, which again kind of defeats the idea of a kit. This beast has some amazing detail and, the more you look at it, it just keeps on coming. I think it might be a lot harder to replicate than it looks.
If I were asked to produce a kit of something like this (which is purely hypothetical, 'cause I don't make kits), I'd be thinking in terms of making a series of pre-cut and engraved acrylic and styrene panels that could then be assembled over some sort of sturdy structure or armature. I'd probably try to create assemblies of whatever kit parts could be molded and supply those as resin plant-ons. Then, it would be up to each builder to layer it all on and detail the rest of it out.
No matter what, I know the talented folks here can figure it out. It's just going to be a lot of work!
