For me this wouldn’t be a great move. Vertical rapid just look naff. And the brochure images back this up somewhat.
A nicely themed rapids is what is required, but would they have the space on that plot?
I think it depends on the model and the theme. If we’re talking those Reverchon travelling models like WMSP has, then yes I agree with you. They can look really naff if they’re left bare. Paultons already has one naff, travelling water ride and it doesn’t need another.
Hafema’s mini raft falls into this category I’d say, though I don’t think it’d take too much dressing to make one look half decent. You can encase it in rockwork to create a bit of a mountain for instance.
If you’re talking a fully-fledged model from Hafema, ala River Quest, then it’s going to probably need a lot of surrounding structure. There’s much more concrete and walls involved than supports. The actual rapids channel is much closer to what you see on traditional rapids than a travelling setup.
RQ did look like a multi-story carpark from some angles for many years. It’s not as bare now, though still not a thing of great beauty. Again though, I think it depends what you do. You could clad the outer structure various ways the theme it. If it’s going up against the edge of a guest area like this seems to be, you also eliminate the need to 360° theme the outer shell like River Quest does, so you can sink that time, effort and money into creating a really substantial front facade.
The main advantage you have with the RQ layout though is the opportunity to almost dark ride theme it. The ground and first floor of River Quest are mostly covered/“indoors”. You could easily 360 theme the on-ride perspective. For example, I think you could create quite an immersive jungle with a treetop canopy overhead.
There’s ample possibilities with a vertical model, I just don’t think we’ve seen a park fully take advantage of it yet.
I’m still more inclined to lean towards a mini model though, based on that suggested footprint and assumed budget, but they may well surprise us.