sounds like a good price. i dunno how functional a $30 strut bar would be..especially APC.
my experience in modding cars has taught me this:
celicas are a great quality car (and not incredibly cheap) so i would rather spend more $$$ on quality parts than save a buck on whatever the product might be. look for something on sale or check out the APR Strut Bar in the ECelica store.
Not to discourage you at all though. Whatever you find for your car that makes you happy it's all good!