A few pack build questions

Equipment Proton Packs
1

What is the diameter of the hole for the top of the ribbon strip?

How do you make the hole for the split loom tube at the pack?

These are the two thing that have been bugging me and i wanna get it right the first time.

2

  1. According to Stefan’s plans it’s a 1" hole: http://www.gbfans.com/images/equipment/plans/stefan_10.jpg

  2. Just like any other hole, however you prefer.