If one wanted to have a 10k-60k userbase capable social network built from scratch (video, music, comments for media (not for members), groups but not "friends and friends of friends", internal message client simpler than gmail/yahoo mail, calendar, with private and public permissions set by users), blogs, individual user file archive with permissions.<p>what might something like that cost if built pretty much from ground up?<p>thank you in advance for your input for all those that know, might know, and care to share.