Hello, I am a professional 2D animator and I am very interested in your project, I have experience making chapters of animated series for Spain, some simple examples are in my portfolio, of course the style and quality influence the time of realization, as an example I would say I do 10-minute chapters and it takes approximately 20 days for each one. I know a lot about basketball and the type of work you do is the one I use with other clients. I can send you examples if you send me examples of your storyboard.
The time of realization depends on the quality and with chapters of three minutes you can achieve very good things with excellent quality in an adequate time of realization, I guarantee commitment and quality in my product