Chassis or just dampers ???

Hello to each other! I did not find the right answer about the search again and therefore still started the chassis topic. Yesterday car from the workshop can be mounted and registered from the rim, let the track be adjusted already 2 times (not cheap) and now they tell me my shock absorbers are in the ass and still two so parts why you can not set the track correctly. Now of course they wanted to turn on a chassis (comic new workshop management) …) and when I asked for the price “naja so 400 – 500 €”. But did not have to let my car somehow lower because I often drive full load and dirt roads or scrapy roads. My question(s) now: Do I really need a complete chassis or rich shock absorbers? Do you have to change springs if you do NOT want to lower them? (read: “Nearly no wear on springs” Where do I get cheap replacement dampers? Nervt me quite nicely, in the past they wanted to put you in the But since the new master is there…..naja….. Thank you very much!! MfG Dunsch