Its best to contact your Account Manager and they can arrange for a PreSales Enterprise Architect to perform a hardware sizing based upon your requirements. You'll need to include information regarding how you use QlikView today including any known plans for the future. We'll need to have a discussion with you regarding your needs in terms of environments, internal/external needs and or high availability/DR needs.
As an output of the exercise you'll receive a hardware sizing for Web-server, QlikView Server and Publisher (where applicable) we'll provide minimum specification you'll need (you can increase the specification of course). I would recommend you take the specification we provide and price the hardware yourself as we can only offer you hardware list price without any discount you can obtain. Qlik does not provide hardware.