I have some thoughts about this, since I'm one of those NoLimits people (even though I'm not very good, but I am working on something like this).
First, I will find something to whine about. Chiefly, if it does invert, I'll whine that it isn't really a hypercoaster, which is my favorite style. If it doesn't go upside down, I'll wonder why they couldn't have thrown in an inversion.
I'll go with the hypercoaster style, though. Take B&M's track style. I grew up riding lots of B&Ms and Arrows, so that track style looks like how I think a coaster should look. I tend not to like the Intamin track style, even though they've made some great rides.
It won't be a hypercoaster, though, as 200 feet is inadequate for me, as is 300. Let's go break 400 feet and have the drop be the longest in the world, about 420 feet. Let's pitch beyond vertical, too. The drop should go into an underwater tunnel.
B&M hypers/gigas tend to have a pattern where 200 feet means two hills before the turnaround, and then 300 means three hills (or turns or whatever for Fury 325). With this hitting 400 feet, there will be four hills before the turnaround.
I gotten FVD++ to give me seven seconds of floater air on a hill after this drop, without dropping below 50mph. This hill turns a bit to the right at the bottom the way that a lot of B&Ms do. Think of the first drop of Diamondback or Behemoth, since this second hill is about that high.
Then there's a hill with sustained ejector air, Skyrush-style, but perhaps for quite a bit longer than Skyrush gives.
(It's says that Diamondback is my favorite, but it would be Skyrush if it didn't throw me side to side so violently. The first drop and next two hills are amazing.)
My next move is a goofy turn to the left that emerged from a mistake in FVD, but one that I like. As it is turning left, it stayed banked left while moving a bit to the right to give an off-camber turn like RMC has done. This gives ejector air while riders at banked 60ish degrees. The final "out" hill will be an ejector hill like Skyrush.
The turnaround should be more elaborate than a hammerhead or ampersand, though I haven't decided what it should be. Anyway, it leads to some more hills. They could be banked like Fury, since bunny hops have been done a lot, but I don't have strong feelings about what they should be. There probably should be an overbank. They should lead back towards the station, roughly hugging the "out" part like B&M out-and-backs tend to do. I like the idea of a triple dip like The Voyage or a quadruple dip like Lightning Rod, so something like that should appear.
Near the station, there is a block brake. Out of this, the track goes through a twister section like Bizarro has. This will end with a splashdown to entertain spectators.
The coaster is in an area themed after a city build amid waterfalls. My folks read Dinotopia to me when I was a kid, and a drawing of their Waterfall City has stayed with me for 20 years.
The ending twister section will dance around some waterfalls, spiraling around one like Havasu Falls and probably digging into the rock behind the waterfall. (I've imagined this as Pride Rock from the Lion King with a waterfall on top.) Another turn will wrap around a rock that jutts out of the river, hugging close to the water, and then another turn the other direction will also hug the water.
Havasu Falls
I like the trains on Diamondback, but I find it hard to work with such long trains, so a standard B&M hyper train with scoops would probably be the way to go; that's how my NoLimits project is going. The other disadvantage to the staggared trains is that people in the back are pretty far apart. What if there's a really pretty girl over there?
(What does everyone think of Skyrush-style airtime in the B&M harnesses...at 100mph?)
Sixty-five million dollars later, I think this would get a high ranking.
It really is the perfect B&M invert imo 
