Hello!
I think I am the best candidate because I will dedicate my time to your project and your project only. For the description you gave, I might have it done in less than 3 days.
I have plenty of experience building websites and my favorite software to design is Photoshop, so there will be no problem for me converting your PSD file in the landing page with the features you require.
Anyhow, I wish you the best of luck!