Wilton is on the road past Wollongong, pretty far south of Liverpool. It’s quite a bit closer than Maclean, but then so is Melbourne. There are very few legal places to build coffee plantations, it turns out, and by a funny coincidence none of them are near Sydney.
I’ve got a bunch of Western Sydney industries to upgrade to level 3, but then I’ll have 100% of Sydney finished, after about 55-60 hours of play.