Don't be afraid to add a realtrack several times on a track like that. I have done up to four just to get a part I like. Sometimes the play the same and then surprise you. I edit heavily in Reaper or n-Track too.
Are you doing everything in RB or BIAB? no outside DAW?

Snap 'em to a grid in the same BPM you programmed them in and learn to edit. They're all bits and pieces anyway. You might as well learn to get the bits and pieces you want!