I love sororities :D
Here is a thread for cycling
I hope it helps.
I would QT them while the tank is cycling - possibly float all their cups in the tank to keep them warm, as well as allows them to see one another. since it's always wise to QT them before putting them in together - unless they all come from the same tank at the pet store.
Java ferns, Java moss, Naja grass, Anubias and Amazon swords tend to be very easy to care for - most don't need the substrate (moss, grass, java fern) as they can be anchored to large rocks/driftwood. Also they do well in smaller tanks without filters. So for beginner plants I'd pick some of those to research and use.
Otherwise, silk plants are just fine.
You want to make sure that you have a lot of mid to tall plants in the tank to break up the line of sight for the girls. And you want it dense - you don't want to be able to see the other side of the tank if you are looking at it from the side (you can leave a few inches in the front of the tank though for feeding and viewing). You just want to make sure they all can't see each other 100% of the time nonstop, and that they have places to hide if one gets chased.
Just make sure that you have a couple smaller tanks, 1gal+ on hand in case one or two of the girls doesn't work out and you can give them a nice home. For a 10 gal you could easily have 5 girls in there without over doing it.
In case you missed the thread about sororities =)