Q: Will it be a complete development project or we have to solve a problem?
A: Development and testing of the draft OGC API - Coverages specification.
Q: What examples exist of servers that have already implemented the draft OGC API - Coverages specification?
A: Examples of implementations are listed at https://github.com/opengeospatial/OGC-API-Sprint-August-2020/blob/master/implementations.adoc