Okay I found 8 keywords (all related to each other) that have around 4.7 million average monthly searches but low CPC (around $0.08). I used the Moz keyword competition analysis and it is around 45-50% competitevness for each keyword. I just registered an domain with my keyword but an extra -ing at the end. I have never really ranked a website before and am a complete newbie. How hard would it be to rank top 10 on Google with minimal investment? Also, how long would it take?