in that case, check this out: http://www.endurostar.com/
I keep something similar when I go touring on my sportbikes.
That's intriguing. If you have it on hand, could you take a photo of it in use on your Zero? The belly pan of the Zero is a little odd, and I'm not sure exactly how sturdily it would hook into it without drilling a hole.
"beware of high winds" on the instructions page is not something one usually hears about a centerstand, but as a cheap compromise it seems workable.
Honestly, for road-side work, I'd really be focused on checking the belt and cleaning road debris off of the rear sprocket, and probably adjusting for alignment and belt tension.
And aside from road-side work, I'd trust a well-designed centerstand over Zero's DS/R kickstand geometry! I think they screwed that up, honestly - the balance of the bike over the pressure points it makes with the tires is too narrow. Every time I notice an S/SR kickstand, I'm annoyed that it actually is better-poised.
I've noticed in some travel stories, that the easiest way to recover from a tire blowout is to take the wheel off at the side of the road, hitch a ride to a town to get a repair, then recovering the bike later. For that scenario, there's no way to leave the bike alone on this kind of stand. But it definitely works for the basic case of getting the tire off the ground to spin.
For garage work, a centerstand just makes maintenance easier, because the front fork can swing more easily, lateral forces are balanced, the headlamp shines straight ahead instead of at an angle, and every horizontal surface inside the bike lays flat instead of at an angle.
For the DS/DSR, getting the wheel off is best done with a center lift, unlike my V-Strom with its sportbike-style front fender and irregular belly shape (without a specifically chosen sturdy bash guard). But a centerstand typically provides just enough clearance to do it with less hassle. This makes a difference.
And yes, I can go outside the range of a (convenient) tow. That's kind of my focus.