Hello,
Based on the requirements and datasets provided, this should be a fairly standard Qlik buildout. As a Qlik architect and designer for 6 years and a certified instructor for 2, most of the data sources I work with on a daily basis are much more complex, unkempt, and consume the majority of the time on projects.
I would estimate a 1 day initial build out, and 1-2 days to implement any changes and completion. The portfolio I have included displays some comparable dashboards I have built.
To answer your question of star vs. snowflake schemas - generally speaking, star schemas are the preferred data model for Qlikview. Depending on the size of the data and complexity of the calculations in the UI, you will begin to see slower Qlik response times when Qlik is fetching information 3+ tables deep from a fact table. With that said, I have seen approx. 50/50 when it comes to using star vs. snowflake schemas and have used both depending on the business structure.
Thanks,
Dennis