Hope this isn't too late to bring this up, but is the small curved area right behind the seats able to be opened up? My one concern is that a lot (if not most) people will be displaying this with Luke, Ben, 3PO and R2 sitting in/on it in the iconic set-up and there doesn't seem to be a way to in some way accomodate 3PO from the knees down.
I understand that you get into the reality of how the 3PO costume sat in the speeder - ie it didn't - his hips weren't able to go to 90 degrees and it's also just upper leg parts with gold tin foil covering the rest for filming purposes (i assume it was just bare legs from keens down to squeeze into the cavity.)
Given many people are going to try to use a 1/6 3PO somehow with this, it might be good to at least have a cavity behind the seat area to see what people can fudge, even if it's going to be super tricky to figure it out. The Tamashii can actually be pulled apart (so you could maybe just have the below-the-knees parts popped off and the hips disjointed so it can achieve the 90 degrees), but not sure on the Sideshow 3PO.
The curved area void I'm talking about is visible in this pic:
And the "simulated seating you can kind of see here: