Dude just use a dedicated server you'll save lots of money. I have a few if your interested that can easily run 10+ bots for like $30-$50/month. Could also sell you one that could run 10+ bots for $100 bucks and a monthly fee of like $35.
i5/i7's aren't really needed to run bots. I mean its always good to have good single core performance but typically you can run a bot off of simple xeon processors. Besides when it comes to botting and accounts getting banned its always good to keep overall cost low.
Over priced as well you could get that server for pennies on a dollar.