Dear all. I believe I can help on this project.
I work with QuickSight since 2019 and have implemented multiple dashboards in my organization. I strongly believe that I can assist you and your company on this task, as besides been an expert in Quicksight (due to years of usage and dashboard building), I can also train your people as I speak Portuguese, Spanish and English fluently.
Answering your bullet points, I an create on initial report to show what can be done, develop this dashboard and later even do it together with your team.
Training the team is something I can easily do and support when necessary. I strongly believe you will not need many hours as the tool is really easy to learn and to start producing dashboards. I guarantee.
If you need any prof of my work, screenshot, discussion, feel free to reach out to me, as I can share some content, information and model.
best
Daniel