[bret a ewing]

Once a deal has been struck, email confirmation with "Secure Signature" if you wish but have at least ONE person to person phone call.

Scanning the passports as well as the title can connect the dots to a reasonable assurance of a "real" car, vs scam.
Inspections are usually necessary unless the "interview" coupled with high-resolution pictures provide the confidence you require.
...........and yep wire xfer, international take about 3 days, but is solid in terms of security.