I am making an ecommerce website.
The products aren't simple products and hence I need an extension or custom website for this.
I have added the pricing structure as an image for you to check the calculations but you can see a similar project here: [login to view URL]
I understand using Ruby on Rails might be the most flexible
As you can see there are many variables so if you are able to help please let me know!
Any questions don't hesitate to ask me.