New basement layout design help - Model Railroader Magazine

Hello all, it’s been almost a year since I have posted on here. In that time I have torn down and sold my HO collection that was in my 15x8 mechanical room and started buying n scale Alaska trains for my new 19x14 train room in a house we had built. I wanted to run by an initial layout sketch I made up today to see if you all think I can accomplish what I think I may be able to accomplish in this space.

So this is what I am looking to get out of this layout. This will be a free lanced Alaska themed layout, where the CN/CP interchange in anchorage from a canadian-Alaskan rail link. Below is a list of goals

-n scale

-20” min curves

-long yard capable of 30-40 car trains

-an intermodal yard

-a coal mine

-a large deep ravine bridge scene 

-mountain scene through turnagain arm

-small city section in anchorage

-a few switching industries in Seward, Whittier and anchorage

-long trains, with both continuous running and switChing 

here is my initial attempt, looking mainly on shape of benchwork and if the elements can fit And if there is another benchwork design you think would work better in the space.