Building a bench setup for modules

I want to put together a small bench setup for working with control modules outside the car. Nothing huge or overly advanced at first — mainly a clean workspace where I can power modules safely, connect diagnostic or programming tools and test things without constantly using a vehicle as the test bench. I’ve started looking through the equipment and accessories at https://ecutools.eu/, but I’m trying to work out what I genuinely need from the beginning. Anyone here have a bench setup they use regularly? What would you consider essential and what can wait until later?

For intermittent problems, an oscilloscope and good electrical testing tools have been much more useful to us than buying another scanner. Being able to watch a signal while moving the harness or putting a circuit under load can expose problems that stored fault codes never show. A circuit tracer can also save a lot of time when you’re dealing with wiring faults.