I have a 5 foot and 8 foot set. If I remember correctly the ceiling was just high enough for a 10 ft. set. I also have a 20 ft. set that I never use, and I would be happy to cut it up so someone else can have a set, and of course I probably won't be using both my short sets. I think I also have a little bit of left over 50# Shanti Speed to make another small line set.
I also have two rev Indoors (My red/black custom, and a spray painted one). The spray painted one is noticeably heavy and is more of a challenge to fly, but if someone needs a kite, I can fly that one just fine, or if you want a challenge, go crazy.