auto blogging
First: when you want to create such a site, ask like this: How to create a release blog?... because as you can see "whatisscene and whatisnot" trolls will flood your thread without giving an answer.
To your question:
you should use a good private torrent site like ipt (as you mentioned). Write a little script or use torrent clients rss watcher feature to download new torrent files. If the tracker has true/proper releases, than with only a little knowledge of php, curl and regex, you can download new torrent files, download an nfo file with them (or the details provided on the torrent's page). After downloading, bash script can unrar, re-rar it and than upload it to hosts, getting the links and post them to a wordpress blog (not necessarily on the same server)
It can be achieved with a little knowledge of:
php
linux-bash scripting
wordpress
I don't think that it costs much to ask a programmer to write this.