OK, based on that description I'd say you're between 1 1/2 to 2 hours from me. So if you ever did need any plants (and if my dad would indeed get 'em to me), I could probably meet you in like Bowling Green or E-town or somewhere.
But it sounds like you've got the plants you need for now. I would say to go with that last option of putting 'em in wire baskets. That should keep 'em from creeping. They don't need much soil to thrive, which is part of the problem since they can end up EVERYWHERE. Also, the soil doesn't even seem to have to be very good for the lilies to grow. If my mom (ol' black thumbs herself) can grow 'em, they must be able to handle some pretty tough conditions.
