Assemble the rails and stiles with glue, inserting the tenons in the mortises. As you assemble the doors, slide the panels in place but do not glue them. Let them float in their grooves. Sand all joints clean and flush, then attach door pulls to the inside stiles. Mortise the door frames and face frames for butt hinges, then mount the doors on the cabinet so the rabbets in the right inside door stiles lap over those on the left.
Install door pulls on the outside of the doors and catches inside the cabinet.
Cut the drawer parts. Measure the drawer openings and note any deviation from the plans. Make the necessary changes in the dimensions, then cut the parts to size. This will allow you to sand each drawer to size, custom-fitting it to its opening. Cut the drawer joinery.