I got the Vanguard landship in Frontier in under a week. How? I didn't join a stupid guild until I got it, let's start with that. What else? I bought the horse straight away. Then I found a route from Boghorn to Nari. Spices one-way, Timber the other. Spices are a great commodity to ship as they're relatively cheap. Speed set to 20x, going to a place close-by, got me there easily. Cloth is REALLY cheap, so that's not a problem. Some places will do diamonds for as little as 8500 or thereabouts. Then what? Help people by the roadside, escape bandits, and BOOM, you have the Vanguard.