The next hardest parts to make are the top and bottom, so I made those next. They are 3/4 " scrap plywood, with oak edging, wide enough that only oak will show on the outside. Because those pieces are about 1 1/4" thick on the existing stand, I made them from two thicknesses of 1 X 2 and 1 X 3 oak. I used a biscuit joiner to attach one thickness of oak to the edges of the plywood, then glued a second thickness on the bottom of that. Here they are, partly completed: The top


The bottom: I glued two thicknesses of oak 1 X 2 on the bottom of the bottom piece to serve as feet to hold the weight. I still need to add a filler strip under the inner edge of the feet so the load is carried over a larger area. Here it is with the feet being glued on:


Tomorrow, I will start making the sides and back and attaching them to the bottom. Those will be 3/4 oak veneered plywood.