It is a great effort, however, can you reach to some whales or steemit inc. for funding the curation part, I believe some big amount of SP is just sitting. I mean that @buildawhale will be profitable for time being when it will get more attention.
However, curation does have some cost: remuneration to curators, upvoting cost on quality posts and maintenance of hardware.

The curation is the best part the @buildawhale possess. If it can be scaled up, it will be huge boon for steemit community.