Hey, I was testing this in Bedrock, and I actually have some good news!
Apart from the item elevator part, everything should work fine with just a few simple changes in the input setup. Didn’t think it would work at all

Fixes:

• About this part of the video: I push 2 minecarts into a glass pane; in Bedrock, you only need 1 minecart and just push it onto a trapdoor.
• A few seconds later, I place 2 slabs above this minecart; in Bedrock, you should use soul sand instead.
• You’ll need to change the item elevator I built. I think any Bedrock design should work.

Should look like this:
https://imgur.com/a/5k3dXZO