So it's actually not that difficult seems like a good sleep can solve all the issues. Leaving the solution here in case someone stuck as I did.
In the view editor the most important thing is to connect user to the sales rep. Since I have sales rep ID in user meta all I had to do is:
{% set post = mb.get_post( user.select_[your_meta_where_ID_is_stored] ) %}
{{ post.post_title }}
{{ post.phone}}
{{ post.emailsales }}
As easy as that;)
