Hi
I am Achu
Read your project description. Well, I am not here to sell any package nor SEO. I always do SEO if the site really demands it. Right now, if you could get the site more content and some very good authority links, you don't need a SEO then.
But when competition comes in, yes we need some tiered link building techniques, link diversity, anchor text variations, social signals and the most important, same niche authority backlinks.
All that 6 points, you said their, I think most of the SEO's will claim that they will follow it. I am not too different becuase all that is what we call as pure white hat, but lemme check your link profile, and domain authority, the positions, so that I could come up with some best ideas to get you the maximum sales.
PM me the website and the keywords,
Thanks
Achu