Does the inverter in my 2006 Highlander Hybrid at 75k miles put me at risk for a 7 hour drive?

We just planned a 7 hour (each way) vacation trip - (first serious outing s=
ince the pandemic began) but now I'm wondering if it's safe to take our car=
.=20

I've just read a few stories of the hybrid inverter in the 2006 Highlander =
Hybrid dying with a dramatic "pop" noise and shutting down the motor, leavi=
ng you to coast to a risky stop wherever you are. The commenters were sayin=
g that this inverter could fail as it reached higher miles. As bad as that =
is I also read that it costs $9,000 to repair it! - certainly more than the=
 car is worth.

In a related question, We lost power overnight due to tropical storm Isaias=
. I was thinking the hybrid car would be great to power an external pure si=
ne wave inverter so that we could run a line to our refrigerator and let th=
e hybrid motor turn on as needed to recharge the battery. Even though this =
would attach to the 12V battery now I'm wondering if this could be also be =
bad for the main hybrid inverter attached to the traction battery. Should w=
e be thinking about trading it in for something else?