That is the solution used in my van. Hole is in line of the leg with a
collar and a cotter pin. Multiple holes so it can be moved up and over the
sink or down for traveling. I also have the PVC insert so it can be brought
all the way up. It works great, looks better than most solutions I have
seen and easy to manage.

https://photos.app.goo.gl/RWYAb6oePANHuHAv6

 Hope that helps!
Ryan in Asheville