Website Developer Wix Javascript

I am looking for a Wix javascript coder to help me tweak a few things on my site, Ideally someone that can leave it in a format where I can maintain it myself if i need to make any changes. The wix store is quite limited in features, we want to remove the cart/Add to cart/Buy it now buttons, and have it so it is an enquire only form. At a later stage we may want to add the cart back with prices changing according to the options selected for a particular item.