As to the real feature of the first shot (the one with the 'Hardly Rideable' in the way) the first truck is either a F15A or F30, cab 12, the next are all CGTs with the first one as Jif has mentioned, a cab 11 and the others 12s.
Interesting to note the 11 cab has what looks like the running in sticker still on the windscreen.
Thanks for the pic, Jordan