To buy MAC BOOK PRO 13 M2 1 TB in store for cash

It’s of course possible …

… but as to whether the hardware configuration you desire will actually be in-stock at any particular store and point of time in the future is well beyond anyone’s knowledge or ability to predict.

We also have no info as to what configurations are even considered “standard” stocked items.

Most models except maybe the lowest models are not generally kept in stock, but are built to your order and rushed to you in only a FEW WEEKS.

Once built, they are NOT upgradeable. You need to buy the correct model the first time.