This is like buying a 1980's Nissan Sentra, then putting spinners, custom paintjob, leather interior, fart muffler, spoiler, and 2000 watt sound system. At the end of the day, it's still a Nissan Sentra, and won't go more than 80 mph, and couldn't even drive the audio amps if you turned them past 2.
I find it amusing that you have all of these monitors, yet you probably can't even run an HD movie on one of them. I would like to know just how much you spent for all of this. It's incredibly pointless to me. You say about using a vaccine instead of a cure, well what do you think is going to happen to your hardware? Your laptop is going to be hopelessly outdated way before you need even 2 of those drives.
If you're still hell bent on making this thing though, you're going to want E-SATA or it's going to be unbelievably slow. Oh, and you say about it being quiet, yet you're going to put 8 harddrives in an open chassis with a dedicated PSU. Yeah, have fun with that noise. When you read off of them it's gonna sound like a train driving across your desk.
This idea is just incredibly pointless, and it sounds to me that you're doing it just because it sounds somewhat cool.