If it were me, I would leave the original barrel.
Unless you have the correct specialized tools for unscrewing/screwing barrels you will probably bend the frame. Once bent, the frame will be junk.
Then, the shoulder of the new barrel must be turned back just the right amount so that the front sight will be at 12 o'clock after the barrel is torqued into the frame. The amount of torque must be somewhere near to correct.
Then, the barrel extension inside the frame must be faced off to provide a correct cylinder gap.
Then, the forcing cone must be recut.
Then, if you are lucky, the underlug on the new barrel might mate correctly with the ejector rod; or it might not if you are unlucky.
Rebarreling a revolver is not a simple task.