Finished the F-766B angle by drilling up the hole to 1/4 inch, edge finishing and rounding off the corners per the plans.
Made the F-785B angle by cutting to length on the band saw, laying out holes and drilling, then cut angles on the bandsaw. Used files and scotchbrite to finish edges.
Made the F-766D spacer by cutting tubing to length with a tubing cutter, then squaring up end with part in the drill press turning against a file. Deburred inside diameter.
Located stock and cut piece for F-767 plate. Did layout and match drilled using channel as a drill guide. Clamp slipped and second hole was off. Cut new piece and started again.