[KongchangAI]
Unverified50% confidenceFactExact time

The material cost for the initial DIY effort was about $30,000, but after delays in city planning approval, material costs rose by more than $10,000 the following year, and when he re-queried quotes this summer, the same model was quoted at nearly $75,000.

1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/13/2026
First Seen
Valid until: 1/11/2027

Sources

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curl https://kongchang.com/api/v1/knowledge/claims/1021374
MCP
get_claim(id=1021374)