And since we're back to pushing around ideas, what about the indoor/outdoor G-fighter concept, aka Mystery Mine? That would make so much sense for this location as it could be screened from EH and fit in nicely with TNT.
There was a ton of talk about them almost pulling the trigger on getting one back in 2007 and 2008. I know MM at DW has lower capacity and some mixed reviews, but I really loved it and I think an improved version would be awesome for SDC.
And if you really believe the German part is accurate, there's also Zierer and Maurer AG, both of whom make smaller launched/vertical drop coasters that could fit inside a building.