I've got my work cut out for me, there's a decent amount of flattening needed on a few strips, and the planer I have access to is abut rough around the edges, so not all the joints are perfect, but it's alright overall.

Once it's flattened and cleaned up, the remaining aesthetic flourishes are to use walnut/sapele to put an edge around it or just cap the ends, then ease the edges and router handles into the ends. I was looking at the boos block website, and they offer the option to put the finger grooves in the middle or in the bottom edge and I really like the functionality of having them on the bottom