VTG 1979 MARX Iwo Jima Giant Play Set, Famous World War II Battle -Incomplete

Giant 1979 Marx playset mountain of Mount Suribachi, in the WW2 Battle of Iwo Jima. This playset depicts the terrain.

I got this for Easter 1979 (see real photo). However, through the years, all the accessories wondered off.

This is the shell and you get what you see in the pictures. I did a quick surface clean.