What makes exact reproduction expensive is a number of things, but one major thing is the demand. A small run of an item tends to have higher costs. There are a lot of factors that come into play when reproducing originals or even OEM fit. 1) being licencing of the parts( on how accurate you want to be), 2) the cost to have the tooling done and 3)engineering costs. If a given item fits a 10 or 20 year span of vehicles across a multitude of makes and models. Then there is a possibility more potential buyers. The Larger the run the lower the cost.
