1997 Sportrak windscreen sustained a lump of lava strike. A big chip that won´t pass the next MOT (or Icelandic equivalent)

I have access to a 1990 and 1993 Feroza about 50 km from here.

Will the older windscreens fit/are they compatible with the newer Sporty body?

I´ve read the Rocky stuff about replacing a windscreen and feel fairly confident at giving it a go, albeit aided and abetted...