In addition,
The chinese people have a saying, Property is king, when you buy a house use it to complement your main run.
Whatever you do, DO NOT BUY A HOUSE IN KAVALA, in fact stay out of kavala period.
The suv makes a good starter smuggling vehicle, fully upgrade it because it is worth it.
Only upgrade your cheap runnabout vehicles or a tempest device, or an mrap, upgrading the other trucks/helis is not worth imo, keep your trucks basic.
And lastly always insure your vehicles, full coverage covers vehicle+upgrades, basic just covers the vehicle, sometimes in olympus less is more.