Good luck. Tesla has made exactly zero progress in 2015 and so far, zero progress in 2016 toward the stated goal of closing the I-10 wasteland/gap from Tucson to San Antonio. It's incomprehensible given the relative inherent danger of transiting I-40 or I-70 by comparison much of the year. It's one thing to say, "Oh, I'll just carry chains". Yeah, well, a) better make sure they're the right chains and b) better plan ahead because not all SvCs have them on hand. Not everyone has snow tires nor AWD. It's just gotten embarrassing at this point.
Meanwhile, that Lordsburg run is better made after topping off at the Embassy Suites in Tucson (2x80A HPWCs). It's ridiculous in any case because it should not take THREE DAYS to make a trip that normally could be made in one long day. I have business in Tucson regularly and refuse to make the trip east from there yet along I-10 just out of principle. Not to mention it's not justifiable.
Finally, please note that the Chademo in Tucson are *all* underpowered either by manufacture or by service run. Your best bet is the one at the Nissan dealership at the Auto Mall, but be aware that you're competing with every other Tesla (with a Chademo adapter) and Leaf in the area. The Nissan dealership manager (Darrin) and internet sales manager (Tom) are gracious folks - if you grab a couple of their cards for people you encounter who might not be Tesla candidates yet but who could swing a Leaf, they'd appreciate the business. All for one and one for all, and that sort of thing. Better a Leaf than a Prius, eh.
Anyway, all is not lost - if/when the Supercharger team gets off the schneid and maybe scores a deal with a national/regional travel center (truck stop) chain (or preferably with some of the longstanding independents, such as the Triple-T on what used to be the outskirts of Tucson), they could close that 8 SC gap from Tucson to San Antonio within a couple of years. But as it stands today, anyone who believes the 2016 projection, as with the 2015 projection, is smoking better stuff than the rest of us - and should bring enough for everybody.