Here is a pic of the four screws removed and me about pushing the plate around with my fingers.
Pushing the plate is easy. there is no pressure from the top deck and i did not need to remove it in order to access the plate. Honestly once the plate is attached to the lower chassis you really don't need to move it at all. Another great thing to note about this craftmanship is this: YOU DO NOT NEED TO DRILL YOUR CHASSIS. if you notice all i used were the existing chassis mounting holes for the top deck. I will get in to this a bit further but for now check out the pic