Set encrypted VPN Network over IP

Set VPN network over the internet and a server (if require) to enable secure & encrypt communication between the users' PC computers that are connected to the VPN. It is also require to secure (encrypt) the data stored in the computers and to eliminate access by unauthorized users as well as to enable sending secure messages (emails etc.) between the VPN members. Securing the computer OS and the BIOS is also require. Installation and setup should be made by remote access + provide the necessary training to an experience admin to proceed and expand the network (i.e to add additional PC's to the VPN and to secure them. It is a benefit to add mobile (Android) to get access the the VPN without compromising the security. Please describe in your offer what servers and software applications you intend using and how you intend implement your solution. Please quote: A price for a pilot (basic) network (x3 PCs) connected to VPN Securing the x3 PCs OS, BIOS and data. Adding x3 Mobiles Phone to the basic VPN Adding Computers and/or mobiles to the VPN in future, per request. Looking forward to your offers, Thank you, Roni