Django Python Backend for elearning site

I need a backend with API endpoints and a web front end.
Can u see this requirement:
 https://docs.google.com/document/d/17bEucyFZy8iA_Ir6Ck1kcK4xAu24V0cr1Gb5fc9-9Nw/edit?usp=sharing 
& let me know your cost/time to do?
Separate time/cost for:
a) backend only (with API endpoints) and
b) web front end
Thanks.
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