[NOTE: this post was written back in October. I've just recently started actually working on the project.]
Thanks to a discussion over at The AllSpark, I've been inspired to create this:
The bumper and square bit in his belly will actually be silver, as will the fuel tanks on his thighs, and the clear parts may end up painted opaque red and blue.
I made the dumper bed grey with dark blue as a throwback to G1's trailer.
The flames (or whatever) on the bumper and his toes will obviously be left out.
This has officially gone from digi-concept to real project.
I used a Bendy Prime head in the digibash, but I have no extra Bendy heads and I have used/am using the heads from other Prime toys for my other Optimus KB's, so I've decided to build one.