Check out P&P Engineering on FB or
here (an introductory thread on TNX); they're out on the East Coast, and are working on a slider/guard package like that. Or, the ones you posted look like the ones that ARB makes for the Navara ... but then you'd have the issue of shipping from AUS, probably a similar problem to the Kaymar bumper you looked into.
As much as I like the look of fender bars like that, I always worry about the torques that could be generated if you actually do lean the truck up on something but back at the bend ... that's a pretty long lever arm in either direction, and I worry about potential deflection or damage multiplication. If you added a hood-bar to try and reinforce that point (to the other side), then you're pretty quickly knocking on the door of an exo-cage.
If you're doing them yourself, or having them done for you locally, you could also use something like this:
http://www.pacificcustoms.com/ac702002-120.html, to make different parts of the tube removable. You just have to be mindful of how it all has to go together, so that you don't wind up in a situation where you can't get the removable parts out because of how the inserts are oriented.