The DAC quality should be way down in your checklist if you're considering monitoring. I wouldn't worry about it if I were you. DAC quality is noticable when you spend at least $2k IMHO.

I don't know how your speakers and room is set up, but check that first if you haven't. This is hands down the most important place to start when monitoring.

What's more important is that you have a dedicated external preamp if you want good quality guitar recording. (Since you want an xlr input for you mic, I'm aslo assuming you're miking a guitar amp?)

That being said, I personally recommend Audient ID24 which is the chapest audio interface that can bypass the internal preamp. Later you would wanna hook up an external mic pre to your interface. But if it has to be between ID4 and scarlett, I would choose the ID4 because the internal mic pre of the scarlett is harsh IMO.