there are a lot more ways to make a good case without those resources.
Just off the top if my head, here are a few:
they made the statue of liberty by making wood forms and hammering copper around the forms with an assortment of forming hammers (ball peen and such), that would be a great way of making a case which can either be painted, lacquered, or left to petina and look a bit like a steampunk device. For forming the wood, all you would have to have is a block of wood, a wood file (rasp), a small hand saw for early shaping, and sandpaper to get it down to what you want it to look like.
You could plaster-form a mould for pouring epoxy resin into and making a cast case whatever coloring agent you mix into the epoxy. plaster forming is pretty easy especially for something that just needs to hold epoxy in place as it dries, same thing to finish the plaster mould as the wood, a rasp and sandpaper, though a can of computer dusting canned air would help a lot. do the sanding outside sitting on a sidewalk or something so you dont make your room a plaster dust covered mess. The epoxy would need sanded and polished after being cast, but again hand tools can do that.
You could also search electronics project distributors for project enclosures that come close to what you want, and though I am not sure they ship internationally, www.polycase.com
would be a great place to look at and see what is available premade for you.
All of these would of course be much easier with a couple power tools, namely a good dremel and bit set for it along with a vibrational sander and finish sander, but everything could be done by hand with some effort.