Membership products

You may need to create a custom control if you wish to automatically do all that logic.

In your Transformation (I assume that's how you are displaying things) you can include and use any ascx control you make. I would create one and pass it the information you need in order to render (like the SkuID), and add in your logic there. Kentico's API can easily accomplish what you are looking to do.

I would look at the default ecommerce site transformations that display a product in order to get an idea of how to get your own info and pass it.

Install/update Kentico with corporate site example if you don't have it. There is membership product page with gold and silver memberships. It already has the desired functionality. I would keep the existing processes such as user registration and check out (you can have 1-page checkout) at least in the beginning. This is your starting point. Play around, modify productlist transformation according to your taste.

Thank you, I'll try you suggestions.