Be prepared to pull front and rear glass then refinish the top metal to paint quality surface. Then take it to a profrssional trim shop for a new top install.
Two things that really look like crap are. Amature convertable top install, headliner and amature vinyl top install. Any one of which can make all the work involved a waste of time/money and kill the value of the car.
Search the archives of this site. I have posted somewhat detailed top install directions in the past. If you insist on punishing yourself.