Make SEO edits on the OpenCart website

Good afternoon.
Most of the tasks on the code, we have introduced, some are being completed.
There are still tasks for the content maker

A list of tasks.
I ask you to evaluate it in as much detail as possible, you need a list of questions and proposals.
https://docs.google.com/document/d/1PPy1LYnRvSmtLK...

What will be the price? Time?
if some problematic tasks?

Thanks, Im waiting.