Thanks for the quick feedback on my dilemma! So much more than I deserve after letting this blog lie moribund for months on end. I agree that a contrast binding could look really rad--I'm thinking red, as usual--but in the end impatience won out. I wanted to finish this sucker, y'know? Coldn't even wait long enough to stop by a yarn store or dig through my stash. So I chose a variation of option A: frogged back one repeat and bound off from there. The "variation" was that I was too impatient to put all those freakin' stitches back on my two circulars, so I left them live and picked up with two dpns as I went along. 
A few of my Spiders found all those hundreds of loose loops a little disconcerting, but the Morehouse is pretty sticky and I only had to reach for my crochet hook once or twice. Though I will admit that this:
was a disaster waiting to happen--I quickly put down the camera and shooed him away!
I finished the edge last Friday, and now it needs blocking. Brooklyn Tweed promises that it blocks beautifully, and I sure hope he's right, because at the moment this circular afhgan is still distinctly conical. But since it's going to require a LOT of pins, and the cats have already expressed an interest in the yarn, my only potential blocking site is the sofabed in the "nursery" which is currently, ah, shall we say, inaccessible.
Ahem. It's like Where's Waldo, only with large furnishings!
The Monkeybaby is kicking the bejeezus out of me today; I think he's getting bored. That or he's a true New Yorker already--"Would you believe, there's only ONE closet in this cruddy little apartment, and I can't get the damn door open!" Stay in just a little while longer, dude, we're busy out here.
