I decided to change my strategy for designing WALL-E. At first I wanted to design it with the mechanisms in mind, but now I decided to first create a relatively accurate model of WALL-E. Then, I'll go back and try to design the movement. It should be easier since I'll know the amount of space I'll have to work with.
Here's a short 360 view of the model so far:
Edit 2: Added the clevis for the hand. Now it's time for The Walking Dead and then sleep.