The #1 & 6 port shape appears to be 1-1/4" tall by 1-5/16" wide, so it might be easier to start with 2 pieces of flat stock: 3/4" and 1/2" thick (cheap & easy), face them together (spot welds?), make them 1-5/16" across and knock down the corners. Now do the same again but 1-3/4" wide for the #2-3 & 4-5. Duh.
Remember to hold the tool with a fixture or clamp to keep all fingers attached. Drill & tap the back end for a slide hammer to remove if captured.
