Just depends if you want a carbed or efi. The 5th gear is also a different ratio on the newer models. There are a TT and Soft top, If you like the square dash that would also be the 88.5 or newer.
These are some of the major differences so it would come down to be a personel preference .
Of coarse these are over 20 something years old so expect to empty your wallet for a while.