Need ID on LGB/Pola LAdder and Wood planks ????

Garden Railroading
1

Hi ALL!

I have this huge box full of Misc LGB/POLA parts. I found this stuff on the bottom. None have markings, I’ve search the net for possble MFG ID,non found. There is this ladder setup, there’s the 2 that make the triangle, I suspect the other 2 somehow connect to that a frame. And I have those plank things, no markings. They have that Pola plastic look and feel to them.

Any guesses ?

Thanks, Ted