Welcome to the world of MB...which = firm ride....If you have bad shocks your car will feel as though it is floating and feel like its going to tip over when you take a fast turn. This is called body roll. Kinda like a 70's lincoln
As far as the headliner goes you can use 3M spray adhesive.
Hope this helps
1957 Dodge D100
1967 VW Microbus 21 Window
2004 Beach cruiser bicycle
"It cannot be emphasized too strongly or too often that this great nation was founded not by religionists, but by Christians; not on religion, but on the Gospel of Jesus Christ. For that reason alone, people of other faiths have been afforded freedom of worship here." Patrick Henry 1776