On a more positive note............
Try contacting fellow foumite "Franey". He supplies febi Bilstein parts at discount prices. febi do an OE spec wishbone, complete with ball joint and bushes (which do wear - especially on a car with 170k miles) and it can be a royal pain to get the bushes out. Once you have got the parts (including the wishbone bolts which should also be replaced at the same time - Franey can supply these too). Find a specialist with the correct MB spring compressor and have him fit the lot in one go. Not a big job if you have the right tools and equipment. You'll need to have the car tracked again afterwards, but once the job's done you can relax in big old comfy estate for the next 100k miles.