Save your money. You can do it yourself!
Save your $30. It'* easy. I just replaced my son'* latch on his '92. I bought a used one from the junk yard for $15. Of course no key for it but it'* not needed because the original lock set can be transferred.
There is a slot on the latch just above the lock tumblers on back side (hidden inside the glove box if it were on the car). If you look in there you'll see something silver. This is one of the lock tumblers that must be depressed to release the lock. To get to the other four depressed (which are the actual tumblers that lock the door), take a 1/16" drill bit and carefully drill out the plastic in that slot. The plastic is very thin. It breaks out easily. This will expose all five tuimblers. Take a paper clip and bend one end 90 degrees so that the bent end is about 7/16" long. (A small Allen wrench would work, too.) This should allow you to depress all five tumblers simultaneously. Us a screw driver blade barely inserted into the key hole and turn COUNTERCLOCKWISE. It won't turn that way normally because of the shiney silver tumbler. Look at the back side of the lock were the lock pin rotates and slides the locking bar. You'll see that the tumbler assembly has a round disk that, if lined up correctly, will allow the tumbler assembly to release from the latch.
Try removing the tumbler set from your original part first since you probably have the correct key for it. (That makes it easier. The key will align four of the tumblers for you.) If so, you won't need to drill the plastic. Insert the key. Take a small screw driver and depress the visible silver tumbler, then turn counter clockwise. Remove the tumbler assembly as above. Once you've done this, you'll see how incredibly easy it is to do.
Insert the key from your original latchinto its lock set. Four of the tumblers will drop flush with the lock set barrel. The silver one may or may not. Insert the lock set into used latch in the same orientation as it was remove. You may have to push down the silver tumbler to get it to clear. Line up the pin and disk on the back side. You might have to move the slider bar a little to get everything lined up. Turn the key 90 degrees CLOCKWISE. Jiggle the lock set to get the silver tumbler to release into the slot and you are in business!