Simply add the products you want to your cart.
On the checkout page, choose "Request a Quote" as your payment method. This will trigger an email to be sent to you with all the pricing details.
If you decide to place the order at a later time, you will need to create a brand new order.
NOTE: Quotes do not generate orders. Once you receive the quote email, your cart is emptied and that "order" is canceled and will NEVER be fulfilled.