if u r looking cheap get w129 300 sl 1990 1991 u get some good ones for that sort of money, neg hard, the 24v have suspect wire looms and gearboxes avoid. similarly w107 can be got at similar money.
these car need maintenance find the best mechnically and respary things like that is not a big problem for the future
but streach a little more and get minter u will not regret it, unless u r handy mechanically and bodwork or know good reasonable people to do the work