I would add - vice(s). I use two. One is very big - over 100 pounds. The other is a small, clamp-on. The big one was given me with a bunch of junk. Retails over $800
re: magnets. I use telescoping magnets. They let me check out pieces without climbing over piles of stuff. I keep one in the truck, one in each of my two garages and one on the tractor. They're pretty cheap and a big time-saver trying to remember "Where did I leave it last time?"
My advice on a Sawzall and grinder - Don't try to "get by" with cheap equipment. What we do is hard on stuff - ourselves included - and cheap stuff just makes us work harder in the first place and work harder to replace it when it wears out.