Wait...? It's pretty much your only option if you want to do one properly. I don't even know if they're going to be in NL2, but at the moment its a case of improvise with another invert model, or don't bother.
Just try for any of the existing inverted coasters in NL honestly. The arrow and vekoma suspended coasters were designed so that the car pretty much would swing directly under the track. Or, try RCT! Its fun making them on there because you dont have to bank the track at all, and you can design them the way arrow originally intended, like Bat was at Kings Island.