Adult Site SEO Rank Boost

I’m preparing to launch a +18 video-based website and I want it sitting on Google’s first page as fast as legitimately possible. My main goal is higher search-engine rankings; traffic and conversions will follow once we’re visible... (Budget: $10 - $30 USD, Jobs: Content Marketing, Conversion Rate Optimization, Google Analytics, Internet Marketing, Keyword Research, Link Building, Marketing, SEO)