I see Speedway Motors lists a new drum for $110.99 and they say free shipping on orders over $100. I know some people don't like Speedway, but these drums have 31 5-star ratings, 5 4-star, and only one 1-star. Even the 1-star rating was because of a slight (.015) out-of-round condition on one drum which was easily corrected by a trip to the machine shop.
I don't know about the prices of the other alternatives mentioned, but I have found that when prices are not quoted, there is usually a good reason.
https://www.speedwaymotors.com/12-x-...IaAlCTEALw_wcB