A: Nowhere. Every public copy is potentially backdoored. If you must, download from a trusted friend or compile from several GitHub forks after auditing.
Setting up this script is straightforward, provided you have a web server (VPS or Shared Hosting) with PHP support. Prerequisites: A server with PHP 5.6 or higher. The curl and allow_url_fopen extensions enabled. Sufficient disk space for the files you intend to leech. Step-by-Step Installation: rapidleech v2 rev 43 hot
After a file is leeched, you get a direct HTTP download link from your own domain. No ads, no timers. A: Nowhere