The DOW devices can be used in parasitic power mode (no explicit 5v), but it was simpler, allowed more sensors and was more robust to just bring 5v along, IIRC.
It will take some kind of a crimper to make the connections. If you are only making a few, you can carefully solder the wire to the terminal, then fold the crimp wings around the cable with pliers.
There are hand crimpers that are not too expensive (~$50), but I would have to look at the ones we have at work to get you a part number. There are thousands at Digi-Key, and I am not sure which one would be cheap and work.
You are looking for something like this:
but that one does not do small enough wires.