Yeah trust, sharecash now run comprehensive anti-cheat/fraud systems and they will detect what you are doing and the download patterns you are creating. Ideas like yours have been attempted before, and it will end up with a ban.
You claim it costs too much to set up and promote your sharecash links on youtube- needing hundreds of accounts and youtube genius- bullshit. I have 1 account and no youtube software, do little promo but yet gain great results- I reccomend you spend some time researching in to a good niche and start with one account, and build from there.