Formed up the breather tube using the windshield bow bending blocks still screwed to the work table. Used a coat hanger to make a pattern. Had to cut off about 1/2" to get it to slip into the hose at the oil dipstick, but other than that, it fit right on. Left it a bit long to allow the bottom end to be bent to fit into the cowling outlet. Had to drill out the clamp to 5/16" for the fastener on the fuel pump blank-off plate.
Overall breather view.
Clamp had to be drilled out to fit the screw.
Looks just like the manual (ok, needs the weep hole).