zizomass - the crash should be fixed in r192, have you tried it?
What you say does not change the fact you could easily make this project use far, far less memory. For example you have 4096 pixel wide images which are just grey with a line of doors on it. You could have a 32x32 grey tiled background with individual door sprites placed along it on top, for example, and you've saved about 60mb of memory right there.
Like the blog post I linked to says, no tool is going to cope well with such extreme requirements on texture usage.