^There is AMPLE room to put a Screamin' Swing by Tigris. It's also been discussed by people who are well in the know about these things and are very trusted sources.
Also, while a Screamin' Swing would look great by the bridge to Congo River Rapids, they would need a more condensed model than the one you used (Skyhawk at CP). Your scaling is off by about 40-50 feet in the pic you shared on reddit. I checked. It's wider than that area between the bridge and bumper cars. The base on it is about 90' not including the clearance needed around it. One that size would not fit in that space (which is only about 75 feet across the closer to Kumba it gets as seen in the pic below).
View attachment 9448
However, one the size of Finnegan' Flyer (32-seater)
might fit. It's base is 66' across according to the manufacturer (not including additional clearance needed)
Screamin' Swing - SandS .
View attachment 9450
Then you would need the queue to squeeze in there, and it would likely be on the side; not the front or back due to visuals and ease of maintenance (there is a maintenance road on the backside of the boat game/bumper cars already-shown in the pic below as the translucent line above the measurement ruler). The furthest concrete pad could go for this ride would be about where I did the measurement below, and even there you'd see the maintenance road (which they need to service the rides and other facilities in that area). The depth of the clearance area/basic footprint is 133' with maintenance building (shown in the pic above). This shows the base depth/clearance space needed:
View attachment 9451
This shows the minimum area needed just for the ride (32-seat model) and swinging clearance (66' x 133'):
View attachment 9452
Doable? perhaps. They'll be cramming it in there however. That leaves little room for a decent sized queue.