The gray box doesn't really bother me, but like many others have stated, it does feel weak and incomplete. Gotta rectify that. I had been working on a trailer for either Siege OP or SS-38 for a while, but it was using the G1 trailer and ended up being way too big. I spent many years in distribution, and I know trailers enough to have small details bug me, like being wider than the cab or wheels that didn't match. When I got the Earthrise figure, I knew I had my base for the trailer idea I had started ages ago. Ingredients (so far): Classics Prime lower legs Styrene Detailing from TR Astrotrain G1 Prime trailer Back panel from an Evergreen Megatron Here's what I have so far... The Megs back panel is forming a third wheel that will stay attached to the trailer. It'll still allow for turning, but by removing the stock port and moving the connection further back, it creates a realistic turning radius. I'll he redoing the back door using the G1 door, as well as the bumper. The tandums were created by fusing the lower legs of Classics Optimus with some spacer styrene and detailing from TR Astrotrain (the small piston piece). I removed the wheels and the mounts, then modified the wheel sections from the ER trailer (they just unscrew off) so they fit in the new wheel wells. The air foils from the Classics mold gold out to support the trailer when it's opened. Once I clean up the cuts, add filler, balance the mounting out and add a few more underside details, I'll start on the interior.