Jack stands (at least in the U.S.) are rated in pairs. So 2-ton stands are rated for 1 ton each.
I'd get jack stands rated 3 tons for the pair. In general, they usually don't cost much more, and they look beefier and make me feel better.
6-tons are even safer but may be annoying to use on typical vehicles since they're big.
You could spend plenty of time just searching for what to look for on a good jack stand, such as the welds, and if the bottom corners are flat instead of just a V-shape, etc. It's not necessary to spend time searching for that stuff, but you could.
If a person doesn't know how to safely jack up a vehicle, they have no business being under it.
I've seen some otherwise-smart people do some very dumb things in this regard.
Oh, and two words: Wheel Chocks.
Ramps can be nice, (I'd trust wood much more than plastic Rhino ramps), but most of the times I lift up a vehicle I'm taking a wheel off anyway, so ramps don't help.
A rubber mat, carpet, etc, to lay on instead of the concrete. A blanket will bunch up as you move on it. Blankets are lame.
Don't need air tools unless doing something fairly serious. Still probably don't "need" them.
If you need to cut metal for some reason, a $15 angle grinder turns into a cutter if you put a cutting wheel on it.
A Dremel would be needed for more precise or smaller things.
A scraper to scrape off old gasket material.
Will probably need a bench vise. Or a friend with a really strong grip.
Telescoping arm with a magnet on the end for when you drop things. You will drop things.
Lots of garage light. Working without good light is annoying, and the gloominess makes me sad.
OP is in Illinois, so PB Blaster/Liquid Wrench and a propane torch will become his best friends.
Most tools you just buy them as you need them. And many specialty ones can be borrowed for free from auto parts stores.
With a 2017, I hope you'll only have to do oil changes, and need a screwdriver to change the air filter.