now to look at the 1.9l swap. 
You mean now to look at your timing belt to make sure you didn't melt/burn it 
Yup, for 30 bucks or whatever I'd be inclined to just replace it... that shrieking was some amount of rubber being burned off... and if it breaks you're into it for a lot more than 30 bucks!
hmm, duly noted!
fwiw, there is no shrieking now.
however, this car is now regulated to "sitting in the parking lot" status. so i am not too worried for now.
soon a new motor will be in it. woooo
The shreiking wasn't the belt, the I-shaft was still spinning, nothing to stop that.
It was the oil pump shaft spinning against the vacuum pump slot, I've heard it before,.. on my trip through New Mexico,..
just before the tow.
which is exactly why, even though everything is back in place and sounding good, it's gonna hang out in the parking lot getting driven no further than a free tow back here.