I have been using the 19.5 Double Coins for many years. There is many truckers that use them.
I have also used the Toyos.
The Double Coins seem to hold up a little better. The tire pressures are somewhat different then the Toyos.
I do not think they are that much less then the Toyos.
Make sure you check the dates before any tires are installed. The Double Coins had a much better date then the Toyos and far better then Michelins.
I will not run Michelins on anything. I did not care for the side flex.