Replace a triple switch with one 3-way switch

I’m updating the very gross outlets and switches in the 1960s house we purchased and I got to this switch. First (on left) controls a light in the kitchen, the center is a 3-way switch for the detached garage, and the right is the porch light. I can only find one triple switch that will fit, but it doesn’t have this many screws. Should I leave this one to a professional?