u plan to drift with your first car ?
i assume you got p's ?
firstly its not that expensive to do a trueno front conversion
the problem is the ae86 jap spec parts are rare unless your willing to get it from japan.
if this is your first car i wouldn;t recommend getting a 4agze or 1jz. there is a lot to consider like insurance, maintenance, parts etc.
4age should be a good way to start since its n/a and has the lil bit of grunt when u need it, you can drift with it also although i don't recommend it.
it is better to buy a car already setup it will save you time and money in the long run unless you got money on hand to spend.
as for suspension if the car has it then great, if not you will mostly likely cough up a fair amount of money .
you got to remember its a 20 year old car
so its not going to be in perfect condition unless your willing to cough up money.