I know that the spades used on the Speltz anticables is thin, but I don't know if they will sell you the spades apart from the cable, but you can try contacting them.
Order and Delivery:
Judy Speltz
2325 Wallingford Lane
Woodbury MN 55125
anticables@hotmail.com
9 AM - 9 PM, Mon-Sat: 651-735-0534