SEO/SEF advise

Hi Team,

I would like to seek some advise from your team for SEO routing for EasyBlog. FYI, I will use EasySocial, EasyBlog, and Komento together.

I have below structure initially for my site:

Home
- EasySocial (/town)
- EasyBlog (/blog)
+ - Blog Mainpage (/blog/home)
+ - Blogger's page (/blog/blogger)
+ - Team Blog Page (/blog/team) [Teamblog layout]

Initially I am having problem with Komento, Stream item from Komento do not have a correct SEF while redirecting traffics from EasySocial Page to EasyBlog page. I have the solution (from this http://stackideas.com/forums/komento-app-s-sef-link-in-social-easy) by setting the default menu item for EasyBlog. Everything works fine then.

However, now I have another problem for fixing Easyblog's menu id by adding additional site structure as below:

Home
- EasySocial (/town)
- EasyBlog (/blog)
+ - Blog Mainpage (/blog/home)
+ - Blogger's page (/blog/blogger)
+ - Team Blog Page (/blog/team) [Teamblog layout]
- Teamblog "ABC" homepage (/a-team)
+ - blogs (/a-team/blog) [Single Teamblog layout]

I want a specific team (eg: a-team) to have their own team's homepage, with their own modules and designs; and their blog actually links to their teamblog page within EasyBlog.

If I've "fixed" the EasyBlog's menu id (within the SEO setting),
- Clicking /a-team/blog can see the a-team's teamblog listing, but clicking ANY articles will end up with SEF : /blog/team/entry/2014/05/07/6-articlename
- Designs/ modules will NOT follow /a-team/blog, but /blog/team settings,

If I've set "Use Current Active Menu Itemid" in EasyBlog's (within the SEO setting),
- Clicking /a-team/blog can see the a-team's teamblog listing, clicking ANY articles will end up with SEF : /a-team/blog/entry/2014/05/07/6-articlename
- Designs/ modules will follow /a-team/blog settings.
- This creates 2 SEF path for same article.
- Clicking the team's article within /blog/team/ will not lead to /a-team/blog and its design / themes/ module setting.

MY wish / desired outcome:
- Clicking links within /blog/team will leads to teams with their own homepage (eg: /a-team/blog), with their own module settings and themes, when it is available (some team's may not have their own "homepage")
- Komento APP's links in EasySocial still workout a correct SEF ( re-direct to an article within EasyBlog's with it's module and theme settings, or team's specific homepage path if it is available)

I just wonder to deal with this situation, do i need to use SEF404 to avoid duplicated / redundant SEF for same article? or I can take a look for "EasyBlog Routing Behavior: Default"? If so , for my case, how should I setup ?

Apologize for the long question but I really need some advice from your team. Thanks ahead.