Been thinking about this since 2012: do an Optimus Prime triple changer (truck, gorilla and robot). For now I'll try to turn the truck into a gorilla and see if I can squeeze a robot mode later (say, by 2017). This will heavily be based on my Kre-O Leader Megatron custom. Rear of the truck forms the arms, cab form the legs and torso.
So, I worked on the forearms last night. Individually articulated fingers. The thumbs are a bit recessed for now due to transformation, I'll see if I can go around the problem or not. Not sure about the double wheels yet.
