Google Top 5

I need to optimize a website originally has PR=4 but tried to optimize without lucky. The most important is the homepage. The site is in Italian language i can help in language if needed. i need to optimize the homepage for word: tatuaggi and other pages: tatuaggi tribali tatuaggi indiani tatuaggi celtici tatuaggi mahori tatuaggi maya tatuaggi cartoon tatuaggi erotici tatuaggi draghi tatuaggi fantasy tatuaggi religiosi tatuaggi sensuali piercing tatuaggio tattoo I think optimization of the pages, automatic fresh content every day, one way links with PR>2 and themed, directed to the pages. Is it good. One question, how much time it needs? Can you make this job without tricks, like comment blog,forum etc? Can i have a real result I mean Real to be in top 5? I pay for real results.