How about trying Ryder truck rental. They are an organisation highly focused on health and safety. I worked for them as a mechanic 10 years ago and i believe if you got in touch with the right person at head office you could be onto a winner its the kind of thing they would put in their internal magazine. You wouldnt get a tipper though youd be looking at a 17 tonne box van or dropside at best, they dont do bin lorries or tippers iirc. They dont do a hell of a lot of advertising and this may be seen as a free way to get their trucks in a magazine. If there can be a positive pr spin attached.