Kris85-GT

i don't know where to find though.

Sup guys, i just recently bought a 1985 celica gt, i was just wondering if which one is better, coilovers or lowering spring? and what is the best looking rims for this model? i was planning to buy watanabe wheels but those are freaking expensive and xxr mk2. and i need to buy something for the car but i don't know how to call it, its from outside of the car, because the passenger's side door, there's a black rubber or plastic outside the mirror and its missing, i was thinking if i'm just gonna remove the other side too so its even, but its gonna be chrome. need some advice guys. thanks!! some pictures of the car, i just changed the seats, and exhaust and the shift knob.