1000 blogs with separate domains and unique content ?
Seriously try to work in batches of 10 or max 20 if you are just starting, no matter the capital you want to invest.
Practical issues: traffic ? organic, ppc, media buy etc. did you research the keywords ? let's say you buy 1000 domains and get your 10 hosting accounts. In general you want at least 3-5 articles or a very good landing page if a site has minimum other content. How long does it take do you think to even get those 3000-5000 articles or 1000 landing pages done, you have found 1 guy ? to do the posts ?. Who is doing the seo both on page and off page ? and for how long ?
Seriously doing such a big project manually and with unique content, even if you hire 2 persons to help in both seo and writing is a major task.
Financial issues: even with 1000 .info domains you waste 2k usd and probably if you don't manage to push out 20 compete sites a week you pay the full amount in renewals (depending on registrar around $10) for domains which are still not used for a year. Let's say 3k-5k unique articles will cost you around 10k usd , good landing pages even more if you outsource them. To hire someone good in seo as you put it for 1000 domains/sites for a year can not be paid, period.
I will explain the part about the SEO, you want someone to do both onpage and offpage seo and as this is an ongoing task if you really want to rank top in the rankings. If you find someone even so good to be able to rank 1st with 25% of your domains within the 1st year what do you think he would earn with his own sites if he would spend that time on his own sites instead of yours ? example, if the 'seo guru' would rank 250 sites of himself instead of working with you and each of his sites would earn only $5 a day on each site average then he will earn $1250 a day after a year. You really think you can find someone who can make a residual income of 1250 a day for himself to be hired for atleast a year for 50k ?
I really don't want to depress you but just trying to give some food to think about.
If you really want to do all manual and unique go for working in batches of domains/sites. This not only saves you a lot of frustration but also a lot of money. It also is easier and earlier to see when you did something wrong or could do better and adjust.
If you really want to roll out 1000 domain/sites then i suggest you to look into automation, things like autoblog etc (with or without rewrite and with or without manual review before for posting).
sorry to keep dragging on
