Esprit S4 chassis dimension.

[Noble P4]

Could a kind owner of an S4 do me a quick favour? I need to know the width of the chassis "box section" at about the point of the gear lever. I appreciate this will be easier if you have a bare chassis to hand but if you don't ask! I don't have access to an esprit to take this measurement myself so any help would be appreciated. Thanks in advance.