if you want to come to abbotsford i / we can get this done for you. will cost you lunch
It's not proteins - it's polyethylene. Maybe you have a family member or friend that will help. It's pretty easy to do. Scrap HMWP sourced from Industrial Plastics. Build your skillset.
The tools you need are cheap. No drillpress? Everyone has a cordless drill these days, anyway. Just screw the scrap piece down to a bigger piece of plywood, etc. The risk potential is now zero. At $160 per hour in a shop, you could make your own spacers in about 20 minutes, pay for the tools you need and still be money ahead. Be brave! You can't mess this up. And, you'll become a hero at home. ☺
This guys got a $800,000 boat with a $800 bait board.. not sure he cares about cost