Bump...
No magnetic hotspot there?
I call that a lot of money. You could run through it upgrading a ship of course. You can grind inventory slots for Star ships and freighters now though.
On the freighter(long)...
You can grind an S class by getting the freighter battle encounter. Play for 3 hours, doing whatever or afk. Then start warp jumping between wealthy tier star systems(you'll need an economy scanner), saving after each jump. You should get the random event of warping into a battle within 5 jumps. Once you do, kill the pirates and save the freighter. The captain will invite you aboard after. Check to see if it's S class. If not reload and repeat. After that you will get the encounter every time you reload and jump, even if you jump to a different system, as long as your jumping from the save just before you first got the encounter. Whatever freighter you get in a system will be the one you always get(but the class will varry), so find one you like in jump range. Then just keep jumping and reloading until you get that one in S class. It takes a while but you can do it in one sitting. Chances are best in wealthy systems, but you can get one in a medium system. S class won't appear in a poor system so don't bother with them. The freighters you get from that are "capital class" and better than the ones that just appear in systems. If there is a way to get a better one I'm not aware of it. Here are the designations for the 3 system tiers.
Low wealth types (common)
- Declining
- Destitute
- Failing
- Fledgling
- Low supply
- Struggling
- Unsuccessful
- Unpromising
Medium wealth types (uncommon)
- Adequate
- Balanced
- Comfortable
- Developing
- Medium Supply
- Promising
- Satisfactory
- Sustainable
High wealth types (rare)
- Advanced
- Affluent
- Booming
- Flourishing
- High Supply
- Opulent
- Prosperous
- Wealthy