Before you fire up the DeLorean, there are a few "practical" issues to consider. For example, how are you going to pay for all of these items?
Very few people had credit cards in those days. The CC company you use now might not have existed in 1950. And most credit cards these days lack the raised embossing needed to run the card.
Dollar bills in larger denominations have undergone numerous changes during the past 20 years in an effort to combat counterfeiting. Unfortunately, those security measures (and the "Series dates") would make currently-issued bills look like funny money. So unless you have access to large amounts of pre-1950 paper money, cash is out.
You could write a check, but given the M&A activity over the past 40 years, would the bank have even existed back then? Of course, your account would not have existed so upon your return to the present-time, you might be subject to arrest for passing worthless checks. (Statute of Limitations might save you though).
You could use silver (no gold coins available) but that might turn out to be a wash in terms of savings.
I'm going out to scrounge some fuel for the flux-capacitor. I leave it to you wise souls to sort out these annoying little details.