I did a temp fix on the top seal on my '85 that actually worked very
well until I ordered a replacement seal several years later.  I use a
large screw driver to scrape out the remains of the steel clips (they
were almost totally rusted away) and then used large amounts of clear
RTV to re-attach and seal the top.  I used the clear RTV rather than
black because any that oozed out and I didn't clean up completely would
not show as much. (I had tried fixing a small section with black weather
strip cement before and had a mess)  Only trick: allow the RTV to start
setting up (become tacky) before re-attaching.