Hi tom.gupta01,
Great you (like me) are having some fun with this route. I shall create one more scenario using the other mine shafts, and then stop. It would have been great if the gradients weren't quite as steep.
Nice to have something different though - so thanks to Fleegle475!

Decided to have a bit of fun with this one and explored the other mine shafts...along with enlisting the help of the other No. 9 to help bring some additional assorted wagons and low loaders to the surface...which went to plan until I tried pushing them back down the shaft as a runaway train while I planned to park up...unfortunately the game decided I was in the locomotive I didn't want to be in and only stopped when I derailed. Back to the last save point and (single loco this time) I pulled 3 loaded cars and an empty low loader at a painfully slow speed up to the top. It was nice to see it in daylight.