A while ago I posted a question regarding how to make some good money online. I eventually settled on a cycle of VIP and contact missions that gets me ~50k every 15-20 minutes. I'm slowly approaching 3mil and I'm wondering what to do next. I've considered my options and it either comes down to:

• Saving for a Hydra, Armored Kuruma, and Cargobob (what I wanted in the first place)

• Buying a vehicle warehouse to start import/export (heard there's a lot of money to be made)

• Indulge myself now and pick up some new clothes and a car or two.

• Wait for Gunrunning DLC and see how OP the new toys are and save for those instead.

If I go the route of import/export, how is it as a solo player? How long did it take to make up the price of the warehouse and actually start making profit? Is the process too grindy and tedious or is it actually fun? What money potential can I expect?