Look up the coaster Karnan. It is Gerstlauer but that isn't the main point. The lift is a vertical lift built into a tower. A properly themed tower like this would be an interesting way to hide a lift hill of any significant height. For B&M, they could build just about anything. Nemesis, invert in England, has a low footprint but packs a wallop. Just once, I'd be interested to see an invert that focuses more on drops and close calls than loops. Of course, a nice floorless or the newer trains from B&M provide the same feeling many times.