Paul, it is not the end of the world - close thou..
About five years ago something similar occurred to me; went to Barber for a track event and all went good lots of fun, as always, left the track stopped to put gas in the car, all good, left the gas station and a block later the popcorn smell, smoke of different colors, lots of funny noise and the car just died by the road...
after the trauma and to make the story short I found out that the issue was a cooked engine harness. Sooooo, take that engine down and play with it, it might be simpler than you think.
DON'T SALE THE CAR! think memories...Dragon...do it again...t-palloza…
The kids will grow up and go away, and there you'll be a "nice dad" that once upon a time had a nice 930.