You'll have to ask @Scott W. Nicely to see the vomit comet version spinning version
In my head, I have an idea of how this will go story wise. Adding in a scene here and there might only add a few seconds but this could be a 90sec experience from leaving the station to entering again.
As for the spinning aspect and what to look at, Cobra's Curse has the seats facing the same way but I'm still fairly set that this will be similar to an extreme spinner train, I think they're also the only ones that allow for launches. My hunch on this is purely based on what is needed for capacity, it's much faster loading and unloading and the seats look far more comfortable.
I do think this will be a heavily modified train compared to what else is out there.