I have only seen 1 set of AB made chaps and in my opinion, they did not cover enough of the bow, they stopped at the rub rail.
We have an AB and we have had damage done to it by being alongside docks below the rubber rub rail. Most chaps extend below the rail. Our chaps get quite scuffed around the bow area from daily use
In Rio Dulce, Guatemala
it cost about US$270 to have a set of chaps made and takes 3 days