Nightmare story. Leave the wheels on if possible. When you take the wheels off lay them underneath the car, put a piece of 4X4 on top of the wheel and wedge it in, quality stands and a phone in arms length at all time...

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1979 Black on Black, 300CD (sold), 1990 Black 300SE, Silver 1989 Volvo 780, 1988 300CE (vanished by the hands of a girlfriend), 1992 300CE (Rescue).