I just threw this video together, its held in one piece by tape and chewed gum.

Some of mods, shaders and resourcepacks use:
• Litematica - https://www.curseforge.com/minecraft/...
• ComplementaryUnbound 5.2.2 - https://www.curseforge.com/minecraft/...
• Redstone Tweaks 2 RP -    • Redstone Tweaks 2.0 | Minecraft Redst...  

Song:
Park Coffee by Filo Starquez   / filo-starquez  
Creative Commons — Attribution 3.0 Unported — CC BY 3.0
Free Download / Stream: https://bit.ly/434QX55
Music promoted by Audio Library    • Park Coffee – Filo Starquez (No Copyr...  

Timestamps:
0:00 - Intro
0:10 - Quick Creaking explanation
0:23 - How the display works
1:21 - Redstone
2:14 - Mob placement
2:27 - Issues and Improvements
3:36 - Outro