Sarah Brant thru Facebook marketplace

Victim Location 49304

Type of a scam Online Purchase

Toyota Tacoma 4×4 extended cab for sale for $2,000. I emailed reply. She asked for full name, address, phone# so FB/MktPlc could notify me w/ process details, etc., “ so we can both be protected.” I received an official looking invoice directing me to buy 4 American Express gift card vouchers of $500 ea. Then call a MktPlc customer support number (1+[909] 833-4453) to confirm payment. She would ship truck, then I would release (?) $$$ upon satisfaction. Is this legit? Are there such things as Am Express “vouchers”? How do I proceed?

BTW, 1) she is military and is to leave the country in a few days. 2) she will pay shipping both ways if I don’t want the truck after all.