Download or right-click open in a new tab if not legible.
I think these are all marked up accurately. Apologies to anyone who actually works with wood, think I marked enough for anyone to copy and cut their own, I assume anyone who is going to build their own bench also has the ability to double check this!
Note : All of the cutouts are 50mm x 18mm and the measures are to a corner (not centers). The circle for the base is a 300mm dia with the center between ends, should be a semi-circle entirely, or close enough.
Attachment 281377
Attachment 281373