Yeah I've found plenty of guides like your post... vague imprecise claims with no backing information on the basic points.

Looks like you have to unlock custom deliveries in Rhalgar's Reach before yellow scrip system unlocks, so at least I can finally see the items.

I also managed to get 1 item off 1 of the 68 nodes, so I guess the 60 red scrip gear is technically good enough but its going to take quite a while at this rate.