Whoops, thought I replied here
Janro...yes, you can stick it together yourself, or I can do it, whichever. The texture is pretty much how it looks. It's not extremely rough, but you can run your fingernail across the surface and feel each groove. So the larger the better, though if it's too large then I may not be able to make it
It'll take a little bit of work to give it a decent surface and paint job, but that may be worth it depending on how much you like your 3d art...
[edit] I finally decided to test sanding it down. It turns out that if you use 220 grit sandpaper, you can successfully smooth down the surface so that there aren't the ridges from the layers anymore. It clouds the surface so that it's no longer shiny in the areas that's sanded, but you can always prime and paint it easily using spray paint or an airbrush, thus giving it a consistent surface. You can go over it with finer grit sandpaper after the 220 initial sweep, to give it a smoother surface and therefore better quality paint job, if you're really into it...