The 587s will need the push rod hole to be opened up a little but you already know that.
If you go with them I have a guide cutter you can use. It's the .531 size.
Jabs, my goal is to start taking a lot of my misc parts and putting things together. I can "plop-drop" them in DT in a few short hours. Test-n-Tune on them, then put them on the "shelf" for future projects that will be coming my way.