VPN & website building

We want to implement and setup an automated VPN service (website and VPN full functions). Example of a similar site would be: www.strongvpn.com. (We already have someone to design the website) Below our main requirements: • Developing creating a control panel so that we can administrate customers and view their information, like their usage and payment information etc. • configuring auto expiration on customer accounts; for example if they cancel their subscription or their payment fails and etc. • Detailed sales reporting panels • Build the VPN website based on the design we will provide, • Developing a secure checkout system with payments through PayPal money bookers and bank payment gateway, • Create a script which automatically and instantly creates and assigns a username and password based on what the customer has purchased and emails the customer these details. • Should use its own log in interface with logo and name like (Cisco anyconnet) for windows login, and should be compatible with most window models, see the following link [login to view URL] or [login to view URL] • For the iphone and ipade, on the top should appear the text (VPN) similar to this link, see the last picture, how on the top of the mobile screen you can see VPN text in blue. [login to view URL] Should be compatible with the following: windows, android, iphone, ipade, mac, mobile windows, Other questions: • Want you to explain the difference between the fooling (L2TP – PPTP – IPSec) • How we can monitor our server usage details to know when to add new servers • What is the specification of the server we should take, • How we can prevent several customers from suing one superscription account at the same time, In your bid mention: How long do you need to finish it, and start your bid with (hi Boss) so we know you read every thing,