You definitely seem to be taking a mouthful of projects just for someone who's starting to model. I build routes I never finish because I find them frustrating and I just don't have the time for it, at one time I wanted to model locomotives in Gmax as well, but the lack of tutorials and other interests drove me away from it. I just think that people are jumping all over you as a warning that doing more things like this may get you a bad rep.
I made the same mistake too. I wanted to publish a route when I literally first started on it, and some other experienced user told me that I should probably anounce it when it is more than halfway done. I actually went off on him, as I take warnings a bit too seriously (this is when I was 11 btw, yes, eleven).
I would like to see the end result of your project after some time, but if I were you, I would probably give yourself a bit more time. As you seem to be straining yourself on a task that normally takes weeks, sometimes months depending on the amount of time dedicated to it. Just my cup of tea.