Final answer:
The most elaborate and detailed method for estimating reproduction cost is the Quantity survey method.
Step-by-step explanation:
The most elaborate and detailed method for estimating reproduction cost is the Quantity survey method. This method involves conducting a detailed survey of the quantities and costs of all the materials, labor, and other necessary resources required for reproduction. It takes into account factors such as market rates, inflation, and specific project requirements to provide an accurate estimate of the reproduction cost.