what happens after ordering the vehicle and the mechanic doesn't approve of it?

Have your mechanic check out the vehicle prior to purchasing to save you some headaches.

Okay before purchasing I should travel to that city and check the vehicle?

I would, buying a vehicle based on photo's and descriptions, you are setting yourself up for a disappointment.

I would only travel if you are looking at a one of a kind vehicle or special one. Just be patient and wait for a vehicle to become available locally if your looking at a mass produced vehicle for your daily driver.

Thank you