I’d definitely go for RAID 0. Just take backups of anything you care about, like you should be doing anyway. RAID 0 doesn’t make the disks unreliable or anything. It just means that if either of the disks fails, you lose the data on both. So while its still a low chance for a disk failure, its twice as high as if you only had one disk because either one could fail.
Don’t let that scare you though. 0.01%x2 is still only 0.02%