Haven't been feeling too great, and am going to go to bed...may just make it a very early night (it's almost 8 PM now).
I built up my swampland, and did some sniping, but didn't see any zombie villagers. So I started trying to kill some of the monsters at the doors, and that went haywire. I ended up having to rebuild about 1/4 of the whole place (the corner where the doors go into the flower forest and into the jungle). I went ahead and went into Creative and fixed up the place. By the time I got it all fixed, it was nighttime again, there were mobs spawning all over the place, including a TON more Creepers, so I just stayed in Creative and started killing things. Suddenly there were three zombie villagers there!
I ended up not trying to herd them into the hut I had made for the purpose. I just killed off everything else, and then blocked in the three zombies as they finished off the healing process. All three of them made it through. One was a farmer, and the other two were clerics. Something happened to the farmer, though. I can't find him anywhere, but the clerics are now my good friends. The first things they wanted to trade emeralds for, was zombie flesh! Woot! I got quite a few emeralds out of that, that I then graded for other things.

As soon as I got them healed, I let them roam around (they love all the doors, of course). Then I went in and lit up the swampland. I also took out the hut that I'll never use, and all the walling-in stuff. I DID get some slime from in there, at the same time the villagers turned up, so if I need more when it comes time to do sticky pistons, I'll just go dark with it again, and go into Creative immediately, to kill and loot.

I'm so tired, sore, and achy...Gonna post my pictures, then go lie down.