I looked at pics of New Texas Giant as well as videos of GravityFlyersInc's creations for reference and it seems like they use similar but slightly different supporting methods.
I had been thinking about finishing in No Limits 2 but I am kinda leaning toward changing my mind.
A couple screenshots of what it looks like so far in addition to a download link:


https://www.dropbox.com/s/vhcvhm4pqnf4dxo/Evil%20Streak.nltrack
Ignore the friction wheel lift and the station at the top of the lift. I plan to change both things back eventually.