see # 66. Where are the ruins of gigantic industrial lime kilns? The lime works would themselves be the size of a pyramid. And if it was done in mom-and pop ovens, then multiply the fuel amount by 2 or 3.
Lime kilns are a later technology. The article says that they may have dissolved soft limestone in ponds of water and then taken the resulting slurry uptop to pour it in the molds.
This really looks possible. The Egyptians were quite good stone workers. Their word for potter was actually "stone worker".
Speaking of straw, your talk about lime kilns is a straw man argument. Nowhere in the article is there any mention of lime kilns.