Tool #1 - 1/2" groove with three #30 holes in it. Made from A2 steel, heat treated with the torch. Overkill, but allows for rapid holes to be laid out.
Tool #2 - 3/4" half circle. Drops over door frame to center holes while drilling. Once again with #30 holes in it. Should keep door panels nice a straight.
Inspirtation from a tool I saw on Super Cub web site.