In addition you'd have to have hundreds of dollars in special tooling to change the barrel.
Among the tools needed are a lathe to trim the barrel shoulder, a special frame wrench with the polymer inserts to fit the Taurus frame, a special cutter tool that works down the barrel to cut and set the barrel-cylinder gap, a special set of cutters and lapping tools to re-cut and lap the forcing cone, and a special plug gauge to gage the forcing cone.
This is why most manufacturers will not sell revolver barrels to anyone. Most people think that locking the barrel in a vice and using a hammer handle to twist off the frame and turn it back on a new barrel is about all that's needed.
Revolver barrels are not just fancy pieces of threaded pipe you can screw on and off at will.