Tips please Amazon & Aliexpress Affiliate sites

I have recently purchased the Aliexpress Plugin & Prosociate the amazon plugin for Wordpress. I have also already purchased 20 Niche related domains.
What i am wanting to do is create one affiliate website per day everyday until i build at least 100 sites.
My idea is that is that i will build each site with either aliexpress plugin or prosociate plugin.
I will setup a facebook fan page for each website. i will rapid index each site, i will also submit my site to search engines.
I am currently looking for a good plugin to automatically post to facebook, twitter, etc.. any suggestions would be great.
I would like to outsource most of my seo to get my pages ranked to make this whole process go much quicker.
The idea is that i want to set up each affiliate site to run on autopilot and need very little maintenance since i will have so many of them, i dont see this being a problem with wordpress and having these plugins
So pretty much i am just looking for any suggestions on how much money i should put into each site's Seo or anything that might help each of my sites be more profitable.

Thank you in advance for any help