Race built as an extension of short track already existing in center of our Guild Hall, it goes around whole Lost Precipice ground/water level and parts of it use natural environment.
Took me a about week of farming 100 Racing Medallions every day (4 race parts), and at least same amount of race parts was deposited by my guild mates. I'm really happy with the results, rides easily and it's intuitive, but still requiring some timed boosts.
Last part is clunky tho, as it's part of existing track, but it really doesn't matter that much compared to awesomeness of the rest of the track
Hope you will like it, maybe it will inspire you to do something similar.