I pulled it off, still has a problem, and the dashboard is a tad too wide to fit the body shell as well, so I filed the left and right ends of the dashboard off.
If I wrestle the thing in, by spreading the sides of the body shell open, it might slide in - but it is putting stress on the parts....
I don't think this part of the kit was well designed - the bottom of the left and right sides of the body shell curve inward....making it too narrow to easily slide the interior tub in.
Very difficult assembly - Maybe that's why I don't see many of these kits around.