Good luck with this. It isn't a very common game. I am actually in the process of restoring a GDI Slither. I have successfully found a board for my cab and that is about it. I don't think GDI was in business for very long.
I have a very nice empty red alert cab,but i don't think i can help as a big chunk of my cpo is missing.It is a very simple design so it shouldn't be too hard to reproduce.
I thought I had seen a pic online before. When I searched just now all you get is Command and Conquer Red Alert hits.
I have a complete game and I 'think' I have an extra control panel. Either way I can surely take a picture for you in the next few days. It is a very generic GDI style cpo but does match the red cabinet well.