Mark, I'll tell you how I do these. The MOST important thing is to get the hole pattern correct...I mean down to a 64th. Not easy and I have plenty of scrapped pieces to show for it. I outline with my band saw and with a 'correct' template I rout the edges and use my belt sander to get the correct outline shape. After that it's all belt sander for shaping, and drill press for holes, and the dremel for inletting.
I couldn't say about the lower grit I haven';t tried that.