I'm not MAC but I'll just give you a placeholder answer
The objectively correct answer will always be what you decide to be the most enjoyable for you and your group. The way I understood it however, is that the weapons slots is just a quick way to write down your options and the damage it does so you don't have to check the weapon damage sheet every time, while they do go to the inventory (but I've set it that you'll have a weapon outside of it, in your hand, sheath, wtv, that is of very easy access)
For provisions and money, I've set that it is not taken into consideration for the inventory slots, since they have their own places in the sheet + I just figure it would be in a different bag or wallet in the case of money.
All in all you're thinking a bit too hard, none of what I said is set in stone at all for you, but I hope this eased your mind a little about it haha.