Hi msp
Yes, you could use Multi-Inventory to do so.
You can create 2 separate inventories and leave the one you don't want to use for sale at the bottom of the list.
And, set the inventory iteration option to "show as out of stock", so when the first inventory is depleted, it won't continue using the next one.
If you have further questions, please let us know.
Best Regards,
Salva.