Being in need of a car I've been giving a lot of thought to buying a W208 CLK 320 coupe. Last weekend I went to view 3 all of which where suffering from rust around the arches. The 2 that I expected to be in better condition ( high mileage but 1 owner and newer 2000 / 01 spec) where actually in terribly condition with interior damage, warning lights on the dash and damaged xenon lights. The older 98 sport spec model with 5 previous owners was in suprisingly good condition with low mileage. But obviously has the rust issue around the arches and boot lock. The garge dealer (independant) at the time said if I paid a deposit on the car he would have a company like chips away repair the rust and also refurb the alloys. He has since rung me back to check my interest and offered me quite a good price of £4200. However I'm still unsure if this is a good deal or if Im buying trouble - are all W208 at around the £5k price suffering from rust? Is this type of repair likely to last and look decent?