I know, there's already the Mars conversion, but I have an idea of something that's looking totally different

I'd like to replace the toyland, but I think the subtropic climate with it's deserts, water reservoirs and the sawmill, which gets it's wood from single trees standing around, is more suitable for simulation of a unknown planet, than the silly bubble generator of toyland

Tell me your opinion! Anyway, I've started with toyland at the moment. But there are some problems (marked in the screenshot):
1. the locomotive looks off-the-track, when looking NE. Why? I've copied it 1:1 from the temperate climate to a locomotive of the same size in toyland:?:
2. the van's gaps are too large. Is ist possible to make them drive closer to each other?
3. the track's fences are different. They are toyland fences, except in a special diagonal direction. But I've changed nothing on the fences!
Next I would know how to rename the vehicles, and add more vehicles later. Is it difficult?