The figures are all official. The trees were 3D printed from Etsy, and the rest of the stuff I ordered online from a hobby shop. The entire thing is sitting on a tree stump.
Molding and casting is the one thing I do not do Wheeljack. I always do one of a kind pieces so each customer can have a unique custom. Sorry I could not help you. There are many more talented customizers than me that could probably assist you though.