Required products - how to sum up the prices

Hi everyone,

does anyone know how to set up required products so that the product page shows sum of the prices of all the required products?



Example:

I sell baby strollers, which consists of 3 pieces. Piece A, B, C have their own product pages. I want to create a product page where price= A+B+C, the product has it’s own title, description and all the futures. If someone buys the stroller, the quantity ordered should be deducted from products A, B and C.



Any help will be appreciated ;-)



Best regards,

Jacek