Cruz family railway 5x6 ft prototype

this was a "worst case scenario" test just to see if my locomotive could even make an inclined grade
so this is was acheieved with atlas over n under piers and peco set track mixed with hornby track
due to structural limitations, both the inner loop and out loop are the same grade, and i verfied that the train could go up and down it.
The atlas over n under set was the only premade system between 2 and 3 %
mathematically i need a 2.4% grade to make the inner loop to the right height by the time it reaches the tunnels
so i will be taking a break from the trains to focus on 3d modeling so that i can print the exact grade i want, which will end up helping me set up trains in the future