any tips for the engine work? I've never done block work and am a little hesitent to crack open the block...
I have been taking dozens of digital pics for reference when putting it back together. Both with the engine in the car and out. Pictures from every conceivable angle. I've also got myself a Paynes manual. At the bare minimum, you will need the Paynes manual. I may go get a factory manual yet. I looked a little bit online when I first got the car but didn't have much luck. I've taken quite a few engines apart but this is my first Toyota one. I gotta say - for being built in 1983, it's pretty damn complex.
Tearing it down was fairly tedious. I would pull something off, clean it, bag (or box) it with the bolts, label it and put it away. Move on to something else. I would also again take pictures at various times.
If you haven't done it before, engine rebuilding isn't something you want to stop in the middle and take a vacation from. Putting things back together is going to test your memory and the longer between disassembly and reassembly the tougher it will be. But the Paynes manual will help. Pick up an engine seal kit before you start. If you plan to replace bearings and rings (I always do) it's best to have the old ones in your hand before you buy the new ones. You can never know if your engine was rebuilt in the past and had the crank ground down or the cylinders bored out. I have yet to find a parts dealer that had internal parts for this particular engine on the shelf. If they have to bring them in, returning the wrong ones could be a hassle.
There's also tools you will need: Valve spring compressor, piston ring compressor, micrometer or digital calipers, torque wrench, etc.
On my engine for example, I could tell that the oil pan had been removed in the past. The gasket surface was pretty badly scratched up. And the #3 piston and bearing was different from the others. I measured everything and it was all standard size. I could only guess that maybe a valve spring broke and it dropped a valve ruining that piston. I don't know.
But a manual and being organized are your biggest assets. Attention to detail doesn't hurt either. Cleanliness is everything too. If you can follow simple steps, it really isn't that bad. The Paynes manual pretty much outlays all the steps you would need to take to get it apart and get it back together again.