Good luck! Their roots don't look half bad! I got really lucky with my last 3 clearance purchases, they looked really good. I've bought one full price and another clearance that were no so bueno. Let us know how it goes!
I would have used sterile scissors though since one of them could be virused and you wouldn't want to spread that to the others because you wouldn't necessarily know it until much, much later. I know you got them really cheap so you might not care about that right now, but it would be a shame to get them healthy and then fall in love with the flowers only to have it die from a virus that could have been prevented.
But it's just an experiment. There's always a possibility of a virus and it may be luck/chance this experiment so it's always good to be careful. But it will be interesting to see what comes of these guys. Kudos on the experiment!