Guest Posts/Blog Posts Script

Looking for off-the-shelf ready guest posts script like [login to view URL] [login to view URL] Will need to see full working demo (with front end and backend ) of the script first, so you should bid only if you have a ready made script! But If you are a developer/coder who has developed similar script/software, you can bid and PM similar script/software you have done. Requirements: -Script should automatically update latest DA, PA, Alexa Rank and other key metrics of sites -Should have feature that allows bulk adding or removal of sites/blogs via uploading list of sites -Must have backend report features -Stable and bug free. -User friendly -Bidder should be the developer of the software, Not the reseller -Full ownership rights/ licence so customisations/modifications can be done -Bidder/developer must have the capability to do modifications/customisations.