Help with Custom Trim Work ...Ideas

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Sketch of One Idea,
FYI: I am a novice at wood working, but I have some skills.
Electrician By Trade, Looking to learn Woodworking. by trial and error or apprenticeship in a cabinet makers woodshop.

You could face off the 2 2ft surfaces with 3/4" oak or birch plywood. Cap off the 2 end surfaces with regular wood cut to the proper width and this will cover up the plywood edges. The best way to do this would be to miter around but this would be tough to do without the proper tools. You could go to a local wood shop with measurements and have them miter them.
For the inlay on the bottom, use a 1x3 to create the frame and tack it to the plywood. Cap it off with a piece of trim on top.
Hope it goes well for you.
David
writer@ www.fixupthishouse.com