What kind of Suspension are you looking for? An adustible type for street use and autocross. Or will you be drag racing the car?
What do you use your 82 GT for? Is it a daily driver or is it a drag / autoX?
For Shocks/Struts-
If you're using it as a driver and looking for a little more performance than stock. Tokico makes a set of OEM replacements that are a bit stiffer than stock. They are a Gas shock replacement. KYB GR-2's are a pretty decent OEM upgrade also. I'm not sure of an availability on coilovers for that year. I don't think there is a big demand for them.
Neither should run you more than 300$ to do all 4 wheels.
BUSHINGS!!!
http://www.
.com/products/products.php?year=1982&make_text=toyota&model_text =celica&category=suspension&subcategory=suspension _bushings
There is a ton for your gen celica. Even some full kits. They will make one of the most noticable differences in your suspension. You can throw every new part you want in there and they will only work half strength if your bushings are worne out.
As for sway bars, under body braces, and Strut braces... I have no idea whats out there for the 82's. You'll have to look into those yourself.