Making the Muslin for Classic Shirt

Hi, I'm making a muslin, first time, I'd appreciate some feedback on whether this is sufficient: I'm thinking to cut out and baste together the shirt front/back/yoke at shoulder seams, put in the front dart, and set in the sleeve. Does that sound about right? I don't have to make the front plackets necessarily, correct? I was thinking of folding & pressing to mimic the front plackets.