Hi Les
Love the pics - ah..... the dulcet roar of the leyland L60 followed by the clank as it broke!!!!!! It all comes rushing back. Some old stock there, the bottom one by the rear wings looks like a Mk 1!!! The rest look to be pre IFCS 2xy's or even 2's.
I loved the way over 15 years I saw a bewildering array of chieftain marks - talk about development problems!!!! Although the real problem was the automotive power and yet, there was only one significant engine upgrade on BHP and it still wasn't enough!!!!!!!