2006 dodge grand caravn sxt suspension parts and rust

I purchased this van about a year or two ago, that was previously in a state that apparently had snow , and so far its been my favorite out of all my vehicles, but recently there have been some issues that seem to be fairly questionable, my dad usually helps me with most of my stuff and i took it to have it looked at but i dont know anything about these things unfortunately but my dad already has so much on his plate right now so i wanted to at least price parts, though because of the rust i have no clue which part to look for so im not wasting my time or money or if its rusted so bad that there would need to be body work done, i still have information from the place so im going to try my best to post the pics here if i can and kinda hope for a miracle, thank you for any help i can receive here