e-commerce plugin

Hello friends,

this is my first post here so if its in wrong place sorry for that.

Here is my problem:

I want to build site whith very simple shop. Only few options needed

First: the shop will have only 10 items

Second: Each item will have round 16 variety but only 2 can by taken for item

Third (much important): depend on that what variety it is the price is rising

And here is my question? What is the best e-commerce plugin for that kind of shop?

I was trying few plugins such as woocommerce but on every one im stuck on my third option..

Thanks for help.