Probably shouldn't post your face on public internet like this, but I'm glad you did, because I have the exact same jacket!
Also, I've been following this project for a while, with all of it's heartbreaks, and it was totally worth it--this turned out awesome!
I use raid5 on an HP server, and am dealing with 2 drive failures, because HP's qc is garbage. Raid6 would have saved me here, but it's not really likely to have 2 drives fail simultaneously, so... yeah.
I recommend looking into 321 backup, too. Raid isn't a backup solution, but it seems you already understand that and are trying to do that.