I can help you out with the doors and the pedal. I used thick construction paper, yellow and black. it looks great to me. you could also use spray paint and just tape off the parts that you dont want to paint.
The pedal is fun to make. I used plywood, .25 inches for the 2 boxes and .5 inches for the piece inbetween. For the actual pedal, use .25 inch plywood, then cover it with sandpaper and add strips of balsa wood for the realistic effect. for the spring, i cut a piece of medal from a hangar and bent it in a circular way. i then used a black “book sock” to cover the spring. If you want to add lights, just ask and i'll tell you.
I thought the trap was so much more fun to make than the proton pack. if you have any more questoins, just post and i'll reply.