Questão jurídica principal
Whether the parties agreed on a forfait price based on the 9 May 1999 estimate and related contract documents.
Decisão extraída
Yes. The courts could infer a fixed price from the overall documentary and practical context.
Fundamentação extraída
The surrounding negotiations, the architect-linked contract documents, later billing practice, and the parties' conduct showed a common intention to set a firm price; the earlier unsigned table did not prevail.