The exhaust downpipe studs weren't a problem; I put the wrench on them and muscled them off, and neither stud broke. Either I've got better tools than I did in 2006, or else the green car's semi-mangled condition was a factor in the painfully difficult removal of said studs.
In fact, I only broke one bolt: a U-bolt holding the flex pipe on the exhaust. And I've already got a spare one of those.
...but that's not the only part which broke; no. You see, I blew the inner CV joint of the driver's side axle, and many bad words were said.
To be fair, I didn't break it because I forgot to remove it before lifting the engine; I broke it trying to separate it from the transmission. I put the crowbar in the wrong spot and POP! the damn thing came apart like it was held together with cello tape.
I think, though, that particular axle was in less than stellar condition, anyway; the car would sometimes make a strange crunk sound when I moved forward after backing up. (YES I stopped before moving forward.) It didn't do it all the time, and I was never able to track down the source of the noise. We'll see if it ever does it after the new axle and drivetrain are in.
I do have the option of simply rebuilding that joint and sticking a new boot on it. The axle costs $65 at O'Reilly; a new boot will be $10. I don't know yet. Maybe I'll pull it and check the thing first and then decide what I want to do; if there's nothing wrong with the internals it wouldn't hurt just to clean it and put a new boot on the thing.
Someone did something to the transaxle at some point: to keep it from leaking fluid all over the damn place I drained it before I removed anything. Ford specifies ATF for the manual transmission, but what came out of this one was clearly gear oil. It had that unmistakable stink of gear lube--as if the color and viscosity wasn't enough to clue me in about that--and now I understand why that transmission always got so sticky after it had sat a while, and why it was always stiff in the cold: some moron had filled it with the wrong damn lubricant. Why the hell don't people read the stinking owner's manual before they do fluid changes?
I'm waiting for the other shoe to drop, but maybe I don't have to; the rebuilding of the other engine was enough trouble for the entire project. There were no unpleasant surprises; everything went approximately as it should have.
All told, a successful removal. I am well pleased.