Thanks for the quick response.
The heat bed I found isn’t 1200W, but is 6000W!
I am planning on making this printer too, but perhaps I will create a 100010001000mm printing volume instead. I saw they have 1000*1000mm silicone heaters too on aliexpress.
For now, I ordered the components for the extruder (I love your extruder setup). I was only wondering what screws, bearings springs etc you used for it. I would really appreciate it if you could send me a short list!