I need some advice or help!

Hello, maybe this will be some simple questions for you but please help me to understand this better. I want to rank a website number 1 in Google in local area.
But i have few things that i don't understand it. In fact i know what to do, but i don't know what is the best way and how to do it.

So...here we go:
-the keyword i want to rank for have just 260 search per month
-the site that are on first page for that keyword have no optimization made and almost no backlinks

my way to make this happen:
-i have buy the domain that mach my exact keyword.
-i have instal Wordpress on it, with plugin for SEO by Yoast
-i have made little optimization on page
-i have submit sitemap to google webmasters tool

and now i must make few backlinks so please give me some suggestions:

-make 5-10 website to be 2.0
-make profile on: facebook, twitter, google+, ...
-submit the website to some local directory that have pagerank +4

and the real question is:
1. I need to change my IP when i make this? use proxy or something?
2. How i can get to index that 2.0 websites faster?
3. backlinks from google +, twitter, facebook appear in webmaster-tools?
because i have another site for almost 1 month and made that social profiles with backlinks and have not appear at all...

Please let me know what is the best way to make this happen. Is not a big competition keyword, so i can't invest money in this...will not worth..
Im complete newbie to this and i will appreciate any help from you.

Thanks and good luck for all!