Trade Wars was a Disappointment in that the Author went to a lot of work to create a terrific map only to let it all down with such a lame victory condition. Collect 10,000 gold. You have basically no enemies and tons of resources. The local gold gets used up but many trade routes are available.
Plenty of other gold exists on the map too, so if you want, just go and get it!
Now that said I wonder why the Author bothered to spend so much time on his map. Most of it you will never see unless you Marco/Polo. His home base is a lovely city with nicely placed trees and features, each city is nicely and logically laid out and the road/cliff/terrain placement is all well done! I hope this author intends the map for another use because it is wasted on just gathering 10,000 gold!