The one Grahams on about is the westy swan neck originally came with replacement bumper irons but over the years most have gone by the wayside, most people adapt their current irons to take the bar....
As he says its almost identical just a little sturdier, it fits in exactly the same way as the current bumpers so no mods to the van itself and the towbar tucks away behind the bumper with the ball only on display a lot cleaner looking when not towing....
And Graham I'm still keeping my peepers open for you.....