I had actually played more with yours in scarm, but fell asleep & forgot about it.
If I leave you hang, I'm sorry, normally a repost like this will shake me up again.
Lots of attch. at the bottom.
I actually added more elevation for ease of landscaping! Too thin is harder to build up to. It is at 7.24", and it ended up with approx 2.2% max as seen.
I swung the descent's curve to the outside much earlier up top.
Testing to find your max grade could let you do two different grades, one on each line, but on the same hill, offsetting the loco heights as they pass on the hill. A visual play that would take more work for sure.
The yard can be pulled quick, it was just to get you thinking. Running the streets is a surprise.
A girder or trestle bridge, or two, over the double tracks, or some tunneling is due
.
There are half a dozen "close calls" on real life fitting. All this computer design is not going to be exact. The grades alone change effective lengths, and they will come up a bit short without doing the actual math to compensate for the added rise.
