[Cal Cruzer]

I have to replace the rear hatch on my PT (small bit of stupidity on my part). Anyone have any experience installing rear glass. Is there any way to get it out and reuse the gasket or should cut it out and buy a new one gasket? I saw an episode of a car show that demonstated a technique using a length of cord to get the window into the gasket. I thought I might try it. I am going to have a new hatch painted and bolt it on at home and I am debating whether to have a glass company come over and put the glass in the new hatch. Any thought or ideas would be appreciated.