If you turn the box sideways - You might fall out! Then all of your thoughts will be ....
How about
:
1. a wide Fixed Gantry, and
2. a short moving table ?
Seem to recall thats what Balsaman did on the first? Or did the final rbuild of number 1 end up with a moving gantry and not the moving table?
Or, Mr Ed, did I missinterpert the question? You were considering a Moving Gantry in your thinking/proposal - right?
Jim