Newbie seeking suggestions – lots of details in post

Hi folks,

I’ve tried another few commerce plugins but none that work completely without creating other difficulties to the site.

I’m looking for a solution – I’m going to see if WooCommerce will work for me. Here’s what I’m hoping I can do with it.

Must do
1.) An ADD TO CART button that will use either the date of the post or other unique identifier as a product name or ID.
2.) Allow multiple sizes/price points to choose from – they would be standard throughout the site.
3.) A non-price option
4.) A one time shipping charge (or is that something that would be created in WooCommerce in the cart?).

Would like to do
5.) The ADD TO CART button will be part of CSS so it shows automatically, not something that I have to add to each post
6.) Allows use of Paypal (OK with others but want to include PP).

Are there plug ins that you would suggest that will or that you believe will accomplish what I’m trying to do?

I appreciate the community here and thank you.

The page I need help with: [log in to see the link]