I saw some pretty big jumps on some of the DH tracks that I wouldn’t attempt on a big bike, let alone a HT. I’d have a bit more of an explore if I were you.
Dunno about the orange paint. I heard that the “Enduro” course (as used for the SSEC race) was to be waymarked at some point, perhaps it’s the beginings of that?
I’ll be down there in a few weeks to have another nose round, myself.
I’m sure one of the FOD regulars’ll know.