Stop in for a cup of coffee

Does anybody hang their exhaust from the floor pans? Asking for a friend...
There were exhaust hangers bolted to the floor, i removed them and welded the holes shut.
Think i am close. Rear valance used to be attached in the centre, to tire well, he cut it out, dunno why....
So many little bits to deal with.
Made a copper backup fixture to assist with filling holes.