Tier Link Building Suggestion

I want to do a manually (tire 1,2,3) link building cause it is a long term adsense niche. My 6 posts are already in 2 page (11-16 th position) for super easy keywords. (4-14 in LTP). I will do manual tier 1 and 2 then blast tier 3 with scrapbox for my 1 post. Hope this can help me to get first page of that post, then inter linking helps other keywords. My plan,

For Tier 1-
3 doc share,
2 image share,
1 youtube,
2 social bookmark,
2 web 2.0 (wordpress, weebly)

For Tier 2-
5 expired tumblr…

Tier Link Building Suggestion