Need help with parts number

I use the Rock Auto web site for that kind of information. They will have the parts listed from a number of different suppliers, with a wide range of prices. In general, at least as far as shock absorbers, the lowest cost will be close to equivalent of original equipment. It's uncommon for a manufacturer go through the trouble of design and production to make a replacement part inferior to the original. Same with ball joints, With parts like that the price is usually more related to the warranty.

Let me know if you need help finding suitable replacements.