Carol,
Besides the April1930s, you can get cord sets for the Featherweight at Sew-Classic.
As for the case, my wife and I tried a bunch of things. What seemed to work the best was a bag of ceder wood shavings. It seems to have reduced much of the odor. However it still has the musty odor if left closed for a long time.
I've read that it's the glue they used that makes the smell.
There is another thread here about getting a mew or original FW case, lots of suggestions in there too.
Joe