Foam is the way to go for strength.
I'm using the extruded pink foam to make my cliffs/tunnels.
I am going to shape them a little bit then cover them in plaster and then paint and add foliage.
Well you will hear this over and over when comparing online to brick and mortar.
That you should do what ever you can to support your LHS.
Well for most people the LHS is lacking in the L part.
The nearest shop to my house is 40 miles one way.
An 80 mile round trip with gas as high as it is, is...
Maybe if you can post some pics of the trains that you came in possession of then
someone could tell you more about what radius of curve is required.
(That's just an excuse to get you to post pics because we just love looking at trains.)
If you have MS Windows then after you save the pic to your computer (right click and click save as) you can put
your mouse cursor over the file and it will show you the date and time that the pic
was taken and the model of the camera.
Great pics by the way.
That is a really nice looking engine.
I just took these pics yesterday in Ennis, TX which is about 30 miles south of Dallas.
If you look at the close up you can see all of the important info on the car.
They put the info back on over the top of the graffiti and left the bulk of the graffiti on there.
You can run two locos lashed together on a DC layout.
It is best if the two locos are equally matched in their speed.
You can run two on the same track NOT hooked to each other and see if they stay next to each other or if one is going faster/slower than the other.
I have several F3 A/A units...
I tried to re-create your drawing using SCARM and it wasn't easy.
This will be better for someone to use to show you with.
What scale is your layout and what kind of track is it?