100% google panda & penguin safe Required.
All domains Must Be Good indexed on Google.
All linking websites domain must be at least 2 Years old.
Each link must be on separate domain (with unique IP address).
All links must be permanent ONE WAY non-reciprocal links from relevant websites. (NO Rented links).
All links must be in text, no graphics.
After completion of project you must provide a spreadsheet with all the 50 links and the Google PR for each.
No fake PR or sites banned by Google, Yahoo, Bing.
No links from "under construction" pages.
No use of automated software or bots.
No links from rel="nofollow" or "noindex" tag for pages.
Thanks & hope to work with you.