
There's a fairly extensive explanation of the ride in the description. The short version is: Yes, there's a collision between TA1 and TA3. This is because of Church's tracks being narrower than NL2s, and a bent which despite many, many hours of attempts I could not get the computer to put it in the right place. The tunnel is marked in the blueprint; I've included it for historical interest but it can of course be turned off. All heights, radius values, node spacings, et cetera are as close to the print as I could get. When there were suspicious bent heights, I cross-checked between the horizontal plan and profile diagram. When those didn't agree either, I used Excel's line graph function to get the line as close to the profile Church drew. Enjoy!
Here are some photos
