Bulk Title Tag Editor Plugin

i need to build a wordpress plugin with this ability editing title tag in bulk which are resulted from platinum seo plugin or all in one seo plugin,so it works like this, grab all title tag of the articles in bulk and then we can edit them first then upload all edited title tag in bulk so all title tags are changed without editing them one by one and go to each post to edit them can you build it?tell me your fixed price and turn around time