I have a 1971 Raleigh Sport Standard with the Endrick pattern (no center ridge) wheels on mine. I used the cheapest tubes and tires I could find on it for years, for many years the tires and tubes came from the local hardware or general stores. It has well over 35,000 miles on it, currently it has been re-purposed as a beer bike with a big front basket, tires and tubes are the Bell brand from WM. You can spend as little or as much as you want. I have several other Raleighs that I have spent much more on, but the old Sports is as dependable and durable as they come.
Aaron