customization of a FACEBOOK PAYPAL SHOP TEMPLATE

I am in need of a customization of a FACEBOOK PAYPAL SHOP TEMPLATE. Please have a look at the original template: [login to view URL] For the variations (currently "available colors") I need a connection to the price. The idea is to build a flower store: e.g. 1. product 1: white orchids 2. variation (stems)- price 20- 10$ 30- 15$ 40- 20$ 50- 30$ With the template I can manage my variation (number of stems) but there is no connection to the price (the price is fixed). Requestes: 1. connect variations and price 2. visibility in the shopping cart (during check out e.g. white orchids- (20)- 10$) 3. provide an overview of the changes in the original store files