Thank you for the point in Ond's cab, I think im going to use the 4x4. His is great, because I wanted it to be angled a bit and he has that down. The plan is to make two of these side by side for some fighting game action, but be expandable for a bigger/smaller tv, and certain add-on's like the 1" space on the CP to add a steering wheel.
I just have no idea about how structural and sturdy anything should be. The bottom base is 30" long, and the CP is 36" long. I shouldnt have to worry about this thing rocking right?