I’m using this MakerSpot prototyping board. The photo shows the board with the A4988 stepper motor driver in position.
I drew up a wiring diagram, incorporating as much of the wiring on to board as I could. Unfortunately, the actual soldering will have to wait for another day. My trusty old Weller TC202 soldering iron (circa 1984 … ?) has apparently given up the ghost for good. Replacement parts are as expensively as a complete replacement.
I also have ordered a bunch of JST connectors that I’m hoping will work well for board-to-board connections (the green boxes on the diagram).