Specify purchase assistance. (Read inside)

Hi all.

I am making a website for my dear friend with WordPress.

She is sowing christmas / baby decorations and therefor I need some detailed purchase assistance.

I am using the standard Paypal shopping cart function at the moment.

I need a function that before the purchase, the user needs to specify which kind of fabric/color/size he/she wants etc. After that has been filled in, the item will be added to the cart. After purchase, I should receive and email with the input the user selected, as well as a “purchase successful” nota.

Anyone who can help me with this matter?

Best regards
Martin