Comment by Hovercraft Full Of Eels on Best way to use my gear for recording my band’s rehearsals

How is the drummer mic'ed? Certainly the Presonus can record to a DAW such as Reaper. If all you need are 8 inputs, then perhaps that would be the way to go. Myself, I have a Soundcraft Ui24r that allows direct recording of 24 prefader inputs to DAW or to USB and that's how I'd do this, but that won't help you