TWR VL - Have you checked Bertie Street? There are a couple of posts there that are possibly relevant. Before you can read them you will need to go through the full registration process with the site.
http://www.bertiestreet.com/forum/vi...hp?f=65&t=2089
and particularly the second and last posts on this thread
http://www.bertiestreet.com/forum/vi...hp?f=65&t=7173
I can only recall heavy crash damage on 2 Mobil VKs - the Moffat Bathurst one and the Gary Scott Lakeside practice incident. But I thought both of those chassis are accounted for?