My suggestion:
Build 100 MNS - ~1800
Bookmark each page (200 articles x 200bookmarks ea) - ~700
Buy a 15k live link blast to the bookmarks- (100 sites x 20) ~2000
Schedule dripped links for each site - ~97 USD a month total (4000 links a day)
Invest in 100 well spun articles for web2.0s - ~300
Create 5 web 2.0s per page, per site - ~500
Blast these with AMR, SB, & Xrumer- ~500
Relax and permit the sites to settle
With the best earning sites begin to expand them.
Invest in 5 1000 word LSI articles for your top 20 sites - ~1500
Permit them to settle and drip feed new links to them
Sell your bottom feeders (Bottom 80) as microniche established sites. Sell at ~100 a pop.
Once sold they will accrue 8000 back.
Money remaining from the original cash still: 2603
Invest in new 500-800 word articles targeting new keywords.
Continue to drip feed backlinks and establish a brand.
These sites could easily earn you 60-100 USD a day once they are set up.