Sheetrock dust is such a killer wet/dry vacuums have a special filter they want you to buy to save the motor.
I've vacuumed probably hundreds of pounds of drywall dust with a Ridgid vacuum and the filter that comes with it. You needn't anything special to protect the motor. It is destructive like any fine abrasive dust, but that's what the vacuum is for.
Just seems from the videos with spiral cut out tools you get really nice straight edges and it's fast.
Get a drywall square and a 19mm Olfa, or a 3 1/2" holesaw for potlights. Those and a drywall saw are all you need.
Scoring with a straight edge will give you a straight edge. No need for any fancy tools.