for the purchase. Given that looks like a high volume dealer with a lot of reviews, I would think it would be low risk. A used car dealer business model depends on people selling them cars, so they can't stiff people on those transactions.

Regarding #2, if she does get cash, keep in mind that money orders have a max limit. I think USPS money orders are only up to $1000. If she buys multiple, it could flag an investigation - especially if it's over $10k and they think she's trying to structure the transaction to stay below reporting limits.