The main problem with uploading a route is making darn sure you don't have any assets that are; A) Payware B) Not on the DLS C) Something you got from a third party site and for the life of you don't remember where. There's an almost certainly that there will be missing assets.
Here's a tip... You NEVER finish a route. It just goes on and on. You can get TIRED of building a route though, and decide to start another one. But same thing---- It'll just go on and on and on. My experience.
Can anyone tell me what the green locomotive is in this picture?
https://www.progressiverailroading.com/intermodal/news/Major-on-dock-rail-project-begins-at-Long-Beach-port--72413