My 740 GL will soon be included in Mannheim's auction (Sydney). It was written off last week.
I have spent well over $2000 on the driveline - driver's side panel damage was uneconomical to repair.
Fully reconditioned head, expansion tank, thermostat, radiator, new battery - all parts new 6 months ago.
The auto transmission is brilliant (the one with the overdrive button).
If you have a 740 watch for it - it should be very cheap.
If you are a Sydney sider I have a lot of 740 parts I am keen to move on (oil filters, rear lights (sedan), interior trim, original radio etc
Regards
Adrian