Replace K2 User Profile with EasySocial Profile

I use K2 for everything. Now that I have installed EasySocial for running the main show, I want to replace K2 user profile completely with EasySocial profile. For this, can you tell me how to do these:

1) Redirect all k2 User profile automatically to EasySocial Profile. Is .htacess redirect my only option? If so, can you give me the redirect rule? Is there another way?

2) In K2 Sub-template, I also want to replace the K2's user profile link to EasySocial Profile link. How do I change this K2's template code so the anchor link refers to EasySocial profile page for that author:

<a itemprop="author" rel="author" href="/<?php echo $this->item->author->link; ?>"><?php echo $this->item->author->name; ?></a>