Hello!
Since I have written tests for everything I have coded professionally within the last 4 years, I have plenty of experience in writing automated tests - also using Selenium. In fact, my first commercial work ever was writing tests for a website using Java and Selenium. I have since worked a lot with Ruby, but any time I use Selenium in Python, I feel like at home immediately.
Nested iframes, by the way, usually are not a problem thanks to the ```driver.switch_to_frame(iframe)``` function.
However, I'd be happy to code these tests for you. Let me know if you have any further questions.
Greetings,
Sebastian