Well I'll see if can pull this back on topic.
Real quick. N. campanulata is a lowlander and N. truncata gets huge so I'd scrap them for your highland tank purposes. Though truncata would probably be okay outdoors there in FL, at least during the summer.
Good, easy, small(er) highlanders would be:
If you want something a little more difficult and that can reach bigger sizes then you can consider:
and basically any of the others as younger plants or if you are willing to cut off the vines and just grow the basal rosettes.