fixing saggy headlining

[thepedster]

After getting the thing out this morning, I am wondering the best way to fix it up and make it look like new again

my plan at the moment is to peal back the fabric from the cardboard, then with a can of spray glue simply glue it back on, taking care not to crease it or get any odd looking stretch marks, is that the go with these things?

/edit, found the post I was looking for, new I had read it somewhere http://www.fordforums.com.au/showthr...ht=head+lining