Go for it. There's a lot of BS about converting a rifle action to a pistol BUT, the ATF says "in writing", if the barrel is at least 16" long and the OAL of the rig is 26" long, it's still a rifle, no matter what it looks like. Any barrel shorter than 16" makes it a SBR (short barreled rifle) and you end up with issues. ATF type.
I built an SP out of a left hand Model 10 repeater action with a 16" barrel and an OAL of at least 26". Works for me.