You don't even need a lab for this. You can solder fine on a computer desk and create custom PCBs using software, then send it off to a company to etch it for you.
Very similar to the fact that most people don't have a dedicate place to do a puzzle, a card table or kitchen table will suffice.
The only extra tool needed is if you need to replace a chip (or solder some QFNs / BGAs), but the cheapest available hot air station will do just fine.