Looks pretty good, though he mentions a bit of rust without pics to show how bad it is, and there are no rear speakers, and the headlamp wipers look wonky.
One of the best ever pictures of my SL has it with a wonky headlight wiper- but they are fine
Seems to have been barrified a bit too, with the aftermarket 'AMG' badge on the back despite not being an AMG model.
So a badge is going to put you off ?
Plus the MOT and tax is due now and that would bump the price up by at least £200.
His
starting price is £100 under your original "cheapskate" budget, he is willing to MOT it, If the car now also has to have a full years RFL included in the purchase price then your budget for the vehicle itself has just hit £550 for a non rusty car that meets all of your requirements!
From where I am sat that is a very cheap car ! - its almost exactly what you originally asked for with Leather and cruise thrown in for free.
If you are prepared to spend a few quid more then get any rust sorted, spend 30 seconds squaring off the headlight wiper and a couple of minutes with a hairdrier to remove the badge!
I don't think you will ever be happy unless you find the absolutely mint £3k car for your £750 - and even then its likely to need a years tax at that price
If you really do want blood from a stone then you need a bigger sledgehammer and an awful lot more time
Options
Interior leather grey / orion gray (268)
Paint
199 metallic blue-black (с 01.01.1983)
Options
240 outside temperature indicator (с 01.03.1982)
280 steering wheel (400 mm dia.) and gearshift lever in leather trim; on W202 390 mm dia. (с 01.05.1984)
341 additional lamp (с 01.09.1982)
362
412 electric sliding roof with tilting device (с 01.07.1983)
420 automatic transmission, floor shift (с 01.01.1963)
440 tempomat (cruise control) (с 01.09.1975)
461 instrument with mileage reading and english lettering (с 01.04.1990)
524 paintcoat preservation (с 01.01.1964)
547 double roller blind and sun visors with mirrors on the left and right, illuminated (с 01.03.1982 по 31.07.1997)
570 folding armrest front w202/210 stowage box front with armrest (с 01.04.1970)
front folding armrest w202 - housing at front with armrest
586 Behr air conditioner, and electric window lifters (front and rear doors) (с 01.04.1970)
593 heat-insulating glass, all-around, heated rear window pane (single-sheet safety glass), band filter
green heat-insulating glass all round, heated rear window, single pane safety glass - tinted strip (с 01.01.1972)
600 headlamp wiper/washer (с 01.08.1971)
615 lamp unit, asymmetrical l.h. traffic, and front and rear door courtesy lamps
like 610, and with type 107 bifocal bulbs
611 + 613 (с 01.11.1978)
620 emission control system
vehicles with catalyst technique (с 01.03.1985)
722 baggage rack, integrated (с 01.07.1981)
724 cargo anchorage (с 01.04.1979)
731 wood trim, burred walnut root (с 01.08.1980)
844 folding seat bench in loading compartment, reverse to direction of travel (с 01.10.1977)
873 seat heater for left and right front seats (с 01.02.1984)