You're going to be looking at $30 plus shipping. Deal with it.
You have to think like this, with these cars;
"There is a part available, NEW, which i can buy, and will be very difficult to fabricate or replace with some alternative."
It may or may not be available next year, and it PROBABLY will not be available in 5 years.
If you plan on keeping your car... think about this... In just the 10 years i've had GVR4s, i've seen the 91 front grill (sic), 93 headlights, all vr4 molded carpet, front fascia, fuel filler hose, main wiring harness, and some other things i cannot recall at the moment all go NLA. Be thankful that a cable specific to AWD galants is even available in the US, considering there were only about 5570 (+/- 15 or so) AWD galants shipped to the US.
It's probably taken a good 20+ years for your parking brake cable to take a sh*t, and now you should know it's a problem area for these cars. They need yearly lubrication, if not more (especially if not garaged) to prevent this happening. Replace the cable, spend the money, be VERY thankful it's even available, and take care of it after you install.
Rock auto sells them. Make sure you dont buy the one that says EXCEPT 4wd. (it comes up in the search even though you select "turbocharged engine").
edit: oh, btw, 90 ggsx should be same as 91-92 vr4