Yes I would love to be able to drive on my local track as well (pucapunul) but I couldn't find a mod for it
I know this is an old thread, so not sure if anyone wants this but I'm in the process of modelling some kart tracks and I could add this to my list. I'm considering setting up a patreon page as I currently have to prioritise paying work; having some support would mean I could put some real effort into these circuits so let me know if this would interest anyone.. I'm over here if you want to see the circuits I've started: https://www.racedepartment.com/members/carl-ahearne.2025486/