import cadquery as cq
w0=cq.Workplane('ZX',origin=(0,7,0))
r=w0.workplane(offset=-107/2).moveTo(28,-11.5).box(136,83,107).union(w0.sketch().push([(-55,12)]).circle(41).reset().face(w0.sketch().segment((22,-26),(39,-26)).arc((16,2),(40,-25)).segment((40,-11)).segment((22,-11)).close().assemble()).finalize().extrude(93))