I would not be to dismissive on this one, although caution is key.
Is the car recorded as a C or a D ? Maybe not recorded so the Q must be asked.
Looks like a quarter panel skin will sort out the body work and the suspension damage, worst case scenario would be a replacement diff cradle complete with all arms etc. which I have available preowned or new.
I know where there is a quarter skin available for £200.00
Non starting may be an issue but this is strange.
Rear suspension and replacement quarter panel can be sorted for around £1800.00 so say £2000.00.
Do the sums.
Alex.