We've done 100's of landing pages for several traffic programs, cam sites, dating sites, and affiliate programs. The pricing varies depending on what's needed on the page, as they can vary so much in length and graphics.
Feel free to send me an email with what you'll be selling and your ideas, and I can get back to you with any questions or suggestions I may have to get you a quote with a timeline for completion.
Examples of some we've done can be seen here -
https://www.zuzanadesigns.com/portfo...#landing-pages