I want to ask two questions: 1. Let's assume that I want to rank for a keyword with 10k searches a month, is there a way to calculate how many PBN backlinks are required for ranking that page to #1? 2. If I want to buy 10 PBN Backlinks with PA, DA 15+, how much would it cost? Thanks in advance for the answer. P.S. I'm a newbie in PBN and Web 2.0. My goal is to learn how to rank my page to #1 with PBN's and Web 2.0 properties.