Looking at the components of the Sketchup file, there's no provision for moveable limbs. The model, as is could be cleaned up for printing, however, it would be one solid lump without moving parts - to get the moving parts would take some re-modelling to create the necessary hinges and joints.
Very nice model, especially for Sketchup. You will find out that no matter how good a model looks on the outside, they will normally need tweaking to print in 3D.. It has some interior faces that need to be removed, the future boolean join(merging shells) looks good. As Paul said it will be a solid piece once it is cleaned up, but cool looking anyway.
I am needing a new project. What height do you need it printed anyway.
KeithHave any questions regarding Blender, and need fast answers, you are always welcome at the IRC Server Freenode, channel #blender. As a bonus, several there have experience in modelling for 3D prints.