Texan, At this stage I have two screws holding the face frame to the rear wall up by countertop level to keep it plumb. The top 1x2 framing at countertop level is just floating at this stage. The 1/2" plywood is screwed to the floor pack. If I take out the screws from the plywood and those two other screws, I can lift this section out as a unit. The vertical section of plywood is off the side wall by an 1/8".