Frankly it would have been quicker for you to find it, since you knew what you were looking for, than it was to moan about it.
Here it is
That's £2,200 per lorry, except for ...errr... all those lorries that already have them (which, for many of those items, seems to be most of them). The local rental place would clear that inside 3 weeks of renting each lorry - except that in practice it would probably just put up prices by a percent or two to pay for it over two or three years, just like it does with every cost.
Or, to put it another way, £2,200 is roughly the cost of diesel for driving one of these lorries about 6,000 miles. Which is probably 2% of the mileage expected out of an engine.
If any business can't cope with an increase in input costs of 1% to 2%, then it's probably going to fail anyway.