Conversion Copywriting for three commercial landing pages

Hello, I need three commercial landing pages copywriting, I need just high quality copywriting for three commercial pages upto 8-10 sections each, My goal is copywriting should be very highly optimized so we get higher sales... (Budget: $10 - $30 USD, Jobs: A/B Testing, Content Strategy, Content Writing, Conversion Rate Optimization, Copywriting, Digital Marketing, Internet Marketing, Keyword Research, Market Research, SEO)