Max traders...now what? [Discussion]

So I'm not a new player, but I've only hit max traders twice.

I'm a standard user so I've only got to level 3 stash space: -

1 x THICC items case

1 x THICC weapons case.

3 x items case

2 x weapons case

6 x ammo case.

12 million in the bank.

How do you build your stash?

Mines a massive mess, I blame adhd on that...

Could do with some guidance on what armour kits you buy, how your store them, which weapon builds etc...

Do you buy/make 5 of the same weapon and store them?

I'm not good with this shit and usually fly by the seat of my pants.