Hello,
I have gone through the requirement and can conclude that I can optimize your store and product listing too on Amazon
I have been hunting and optimizing products for several accounts with paid tools like Helium10, JungleScout and so on.
I want to ask you some questions regarding your store and product
1) Have you checked your competitor's sales before launching your product?
2) Do you have a optimized listing with all the relevant keywords in it?