I wouldn't skimp too much on the torque wrench. I have, I guess, four or five. The school I went to used the same curriculum as Humfrz. We used (and sometimes cursed) the "Armstrong" torque wrenches most of us had. In addition to farm equipment, however, I spent a lot of years working on 60s and 70s vintage Japanese and British motorcycles. As a general rule the fasteners were soft and the cases softer. The cost of breaking a bolt in a blind hole or stripping that hole could be pretty high. I have a nice collection of heli-coil sets in 5 to 10mm as a legacy. So, I torque fasteners more often than not.
I suggest eventually acquiring a 1/4" drive 20-140 inch/pound, a 3/8" 5-75 ft/lb, and a 1/2" 20-150 ft/lb. An 18" breaker bar is nice as is are sets of square drive allen and torx sockets and duplicate sets of your most used box/combination wrenches.
I have several air impacts but a decent electric one can will do, and can be a big time/aggravation beater. Just don't use it to tighten anything.
A couple of things I use a lot are a good cordless drill/driver and a set of these:
https://www.homedepot.com/p/DEWALT-3...2542/100495100
I have them in 1/4", 3/8" and 1/2" and they are great for running a bunch of bolts/nuts down finger tight before you torque them.