im thinking about purchasing an rx7, i dont know anything about what year or whatever but can anyone give me a quote on how much the insurance might be ?

the year is the most important part of the insurance

say late 90's? '96 + ?

you still between to generations.. FC 86-91 2gn / FD 93-95 3rd gen . aif you are getting an FD then you will be paying a quite lot of money , but it all depends you driving history, how old you are.......etc etc.