Last In cost used for Sales/Inventory

Hello.

We have a location currently using a manually maintained 07 Standard Cost for sales.  They essentially buy and re-sell items and would rather use a landed cost (01 Last-in) instead as it would update regularly with new receipts.

First question - is there any reason we can't use 01 for sales?  Are there things to be done behind the scenes if we switch from 07 to 01 for the Sales/Inventory cost?

This location is currently on 8.12.

Thanks!