I came across
http://miliblog.co.uk, a "sort of on-line museum and database" website run by a certain Mr. Simon Sage, who has been in the HMV scene quite long appararently.
Mr. Sage provides a nice overview of pictures of preserved CMP's taken at shows over the years at
http://miliblog.co.uk/?cat=159. Where are they now?
Check for other vehicle types too, hundreds of pictures on this site.
- Hanno