This is a project that a friend and me started a few weeks ago.
We plan on making a 1:10 scale replica of Hersheypark's Fahrenheit coaster. The lift and 97 degree first drop will be 12 feet tall, but if the structure isn't strong enough, we may need to shrink it down to 8ft tall.
The Norewigion Loop will be 10 feet tall,the Cobra Roll 7ft and the rest he yet to be determined since no info has been made on the height of the corkscrews and over-banked turn.
So far the front part of the station and the first turn is done. I'm still experimenting with what type of framework I will use for the lift.
Here's some new pics of the first turn before the lift.
http://i533.photobucket.com/albums/ee340/knexfahrenheit/DSCF0007-1.jpg
The base gear for the lift hill.

http://i533.photobucket.com/albums/ee340/knexfahrenheit/DSCF0006-1.jpg

The first turn. It gradually slopes downhill to eliminate the use of a tire propeller.

http://i533.photobucket.com/albums/ee340/knexfahrenheit/DSCF0005-1.jpg
This section will be the front part of the station. That tire propeller will stop, dispatch, or reverse the cars depending on how it will be set.

http://i533.photobucket.com/albums/ee340/knexfahrenheit/DSCF0004-2.jpg
Here's an overall shot of the first turn.

More to come.

Looks cool Chris, I liked how you started you model. I would suggest you model out the track ,like make blueprints. It helped me on my project. . . . . .that collapsed