I know, I know, it can't be done! But I say nay to that, nay to you nay sayers!...
I live for "it can't be done"
If I would try I'd pant in Clay pots. I's use 2" river stones on the surface of the Clay pot substrate and only allow the plants to grow between the rocks.
I think I'd start with Jungle val, C. ciliate or Anubias hastifolia. The anubias I'd sugar glue to Driftwood.
Go for it. One thing I would also do is run the tank closer to 72 than to 78. Every chic lid I've ever owned was more rambunctious in warmer water. Do take your time with lowering the temps.