I have the same problem I have two sets of wires one is epoxied and the other soldered both missing wires.Here's a link to the least expensive replacement I've found.http://www.amazon.com/Vintage-Strand-Rogers-Dynasonic-Snares/dp/B0002D0JGA/ref=sr_1_58?s=musical-instruments&ie=UTF8&qid=1317726207&sr=1-58
How about this one for $27.99?
[ame]http://www.amazon.com/PureSound-Vintage-Dyna-Sonic-Snare-Strand/dp/B004DGI3ZQ/ref=pd_rhf_se_p_t_2[/ame]