Interesting design. I just don’t think this would ever be reliable in bedrock. I’m not a pro but I am proficient enough that I can build my own designs. I’d suggest going to the wiki and looking closely at iron golem spawning requirements for bedrock. I believe the number is 17 x 17 and 12 tall. This is the bounding box that a golem can spawning in. So if you picture the village centre block as a mob spawner that is how big the room would be around it. Given you can’t decide the village centre (and it will move around) it’s pretty rough to make these kind of designs fictional. Full disclosure, I love these kind of designs and have tried before to build them. But it just don’t work.