Agreed. What could be great is something like this, using the Pandora show building as an example. The bottom 40-feet would be the always-night indoor space (F&B, retail, queue) and the top 40-feet would be the attraction, plus a carve out for lift and splash down between levels.
The lift could be themed like you are caught up in a tropical storm surge, maybe elevator-style rather than incline (the splash down could be multiple smaller or shallower-angle drops if it wants more of a dark ride feel, less thrills).
I think if the theme of a CFtBL boat ride is going through the jungle, a tight, dark claustrophobic feel and diminished show-space height is perfect -- more Splash Mountain/Tiana in interior scale than the grandiose PotC. So, 40-feet would be plenty.
Same for the always-night area. I'm thinking more jungle (Rainforest Cafe-esque) with foliage overhead rather than wide-open night skies high above as in Blue Bayou. So, again, 40 feet is perfect.
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