Try using a few reams of copy paper (or books and boxes etc) to prop up monitors and input devices. I had such a makeshift setup at first.

Also, have you tried working from home? Orthogonally, negotiating a four day work week 4x8h (at 80% pay) might help you enjoy yourself more. Managment might not be too happy, but if you insist and tell them that the alternative is 0 day work week at 0% pay (i.e. you leave), they might see the light.