More seriously, you can set this up with KPIs in a day with Zabbix. A week, if you've never dealt with Zabbix, which is admittedly somewhat complex compared to some of the others.
But setting up a data warehouse that builds out the KPIs you're looking for along with a dashboard to display them (the easy part, for sure) can certainly take over a month.
Probably was someone's full time job for a couple months.
When was this written? Why is there no year in the date?