John, I don't have a 1928 Star, but I do have a 928 Durant and I bought my inside door handles from the company that makes them in Australia. The price was good and the product excellent. You can see their catalog from our web site advertised at the bottom of the technical page "Vintage Parts".
Where Are You From? Oviedo, Florida
Do You own a car built by Durant? 1928 Durant Model 65