Laptop Pair KVM Setup

I will courier a sealed kit containing two pre-configured laptops and a single KVM switch straight to you. Your first task is purely physical: cable both machines into the KVM so the keyboard, mouse and monitor can hop from one laptop to the other with no perceptible delay or signal loss... (Budget: $250 - $300 USD, Jobs: Desktop Support, Network Security, System Administration, Technical Documentation, Technical Support, Troubleshooting, Video Conferencing)