3L olive bucket


After watching a youtube video on using grounding clamps for attachment points, split a 3L olive bucket in half and am going to make an anything rack! My concern now, is placement of the drill holes in the sides of the bucket. Any sage advice is welcome. The main purpose of the racks is to support two 2L bottles of water (which fit perfectly into the half buckets).

The grounding clamps (from Lowe's website and bought there) https://mobileimages.lowes.com/produ...1857491604.jpg

Cheapest way to add bidon points I have encountered.