I took a photo just now. It's not in the garbage yet, but it needs to grow some new roots PDQ if it is going to make it. I think having no roots, and drying out to much just prevented any water from getting into the leafs and it is now this floppy limp little chick.
Hey Heather... that doesnt look so bad, I've recovered plants that look worse than that. You can revive it with foliar watering while it recovers, perhaps a bit of rooting hormone or Superthrive to get some roots growing... its not a lost cause.
I killed 20 sanderianums just a year ago They weren't that big, though...
I've had some success with plants in this condition using sphagnum moss. I clean any obviously rotted part and pot up in pure sphag. Move it to lower ligh; keep it damp but not wet and don't let it dry out. I've had better luck with this than with sphag and bag.
I would suggest misting the leaves a couple of times a day, taking extra care to mist the under-sides of the leaves (and obviously, not in the evenings). Repotting into sphagnum (and bagging) are always options, but depend on the condition of the roots. If you still have one or two good healthy roots, it may do more harm to repot it while it's already stressed. Anyway, I'd also agree with gary that it will help to move it into the shade for a while. Personally, I think that a sanderianum is worth just about any amount of extra trouble, even if you have others