A Monorail Update Would Be a Terrible Idea...

I think it should be the next $$ million dollar item, with segments or groups of segments ( how big do you want it ), and some special segments for donuts.
So if you want it you buy the station, build a complete circuit (to whatever size you like), quest line- monorail collapses in areas, end of quest. But since were rich and sitting on tons of money to blow our noses with we can fix it, till the next time it breaks down. Maybe have interactions with building owners complaining about damage.