Which displaycase for AutoArt McLaren F1?

[ferrari2k]

Hi, I bought the 1:18 AutoArt McLaren F1 + the 1:18 AutoArt display case.
Now I want to display the car with doors open, etc.
The problem is, the AA display case is shaped like / \. At the bottom there is enough space, but when I put the lid down, it touches the doors and they close.
I would need a display case with walls more like | |, or one that is a little bit wider.
The height is sufficient (just) for the bonnet to be up.
Does anyone have an idea what a display case I can use?
Its a shame that AutoArt does not test their display cases for "compatibility" with a 250$ model that you would naturally display all-open.