IMHO I think an oil pressure switch in addition to an inertia switch, would work.
I don't know whose, but on youtube there is a video of a lakester rolling. After it stopped moving, it kept running for what seemed like a very long time. All the time running, with a leak, could have been spraying a large amount of fuel.
On Ford cars, the inertia switch controls a relay. I'm wiring in a 50 amp relay for ignition and fuel pump. It just might save some expensive engine repairs.
The inertia switch, from what I can tell, is bi-directional, front to rear only. No sideways or vertical trip, so needs to be installed in the same orientation as on the original vehicle.
Just my $.02
Ron