Jennifer
Moody and emotional slob
That was the tricky part. You have to leave the curve front 1/4 panels for last after you have the back sides and the 1in boards all nailed in place. Put glue on the board where the front panels would go. Start at 1 end with the first layer of 1/4 ply square it up and start nailing work your way all the way across the curve nailing as you go. Smear (technical term LOL) with glue and start the process again with the second layer of 1/4 ply. You can leave the ends of the ply a little long and then trim with a jigsaw and sand to leave a nice edge. I own pneumatic finish nailers and brad nailers makes the job go a lot smoother. I made the front hinge up which I did after the whole thing was done and glue had set. This made the front panel a little flimsy so reinforcing was needed (visible in the last pic).