Dog situation update: I got some information from a friend who left with her dog last year. She suggested Continental Cargo (which, apparently, can be called United too, or, according to Dale from Houston, anything I want, really). I called. I sat on hold for 52 minutes before being connected to Dale. I couldn't help but smile- his accent was fantastic and even though he was not being helpful- well, not in the way I needed him to be- everything he said made me laugh.
Especially the part when he said it wouldn't be hard to get in touch with and deal with United Cargo here in Guatemala. I openly guffawed at that. But Dale said he'd been to Guatemala and he knew that it would be okay.
I didn't trust Dale but, as my dogs were still not coming home with us, I had no choice but to go ahead with my attempts to get them on some sort of plane. Using the information provided by the aforementioned friend, I emailed United Cargo and- shock and joyous surprise- got an almost immediate response. And now, we are simply waiting for our reservation to be confirmed. So, it would seem, that the dogs are coming home with us.
Probably. Never count your chickens in Guatemala.
Sigh. Bittersweet. It's always bittersweet.