Hello there. Your restaurant looks like quite a nice place :) I think I am a good match for your project - I am a professional web developer with 6+ years of experience, 3 of which as a freelancer.
Before a week or two I integrated a MailChimp newsletter subscribtion form into a website and I believe your project is quite similar - only the form is much bigger :)
Let me know if you have any questions, I am here to talk and discuss further.
Best regards,
Pavel