How to turn tracks into Supertruck tracks?

[Harry Tulloch]

Hi guys
I would love to be able to add staduim jumps to some tracks like bathurst, nordschleife, spa ect
whats the best way to do this can I take a track and export it to 3dsmax (or another 3d software) and take the jumps from say adelaide and add them to the track then export them back out.