65 Barracuda interior install

FWIW, headliners are actually quite easy to put in. I did my 69 Barracuda FB about 20 years ago. My college age daughter and I did it in one day. Just take your time and use a GOOD quality contact adhesive and you will be fine. I helped a friend restore a 67 Mustang coupe, and he was going to pay an interior shop to do the headliner. I talked him out of that and we did it ourselves. As for the glass, That is really easy to install, Just make sure the gaskets are warm and soft and use a spray bottle with soapy water as a lubricant as you pull the twine around. There are lots of YouTube videos on these subjects.