OK, so this may have been posted before (I did try to search it), but I just did a Hauler run that I found on reddit and damn did it pay off. Big time. 400k+ in an hour.
I started with only 32k. At the end of the loop, I had 444k.
First step, is you need to get your Hauler in shape.
1. Sell all your hardpoints. You're not gonna need 'em.
2. Buy all "D" class equipment (except frame shift drive, more on that later)
3. Sell your shield generator. Yeah. Do it. Replace with 4x cargo hold.
4. Get a fuel scoop.
5. Save up and buy the best Frame shift drive you can buy (about 160k)
6. Have at least 30k left over and head to Eleu system, Finney Station.
Now, you're ready to start.
Here is the route:
This is NOT my run. All credit goes to OSUaeronerd (GO BUCKS!). Amazing discovery for making money. It works.
Original thread:
Reddit thread here
notes:
You're looking for the rares, marked in the commodities market as bright yellow. See the image. You don't want tea at Heike, you want the special Heike Ceremonial Tea.
If you get to a station and the rares (marked in yellow text) are sold out. Take a break. 30-60 minutes and they will be replenished. You don't need a lot of each to make money. At most I got 3 to 8 of the rare goods on my run. Don't need to get greedy. Move on, sell, make money.
Sometimes finding a route to the next system 100 light years away is a pain. Use the galaxy map and try to find midpoints between you and your destination that allow you to plot a route. Use "fastest route". When you get close enough, it might let you plot to your destination. It may take some planning. Stick with it. It will work.
I had one interdiction the entire route and I jumped out of it. Stay alert though, and dock with extreme caution. You have no shields.
FYI: I was playing on Solo to minimize interdictions.
Good luck!