Custom Battery Cables
Here is a set for an A body based off a 70 Dart swinger 340.
With the OEM repro stuff priced out of sight, 140 for a pos and about 45 for a negative cable, these are right at 100-120 + shipping for both. They are much more stout than the 4ga OEM wire. IIRC these cable are about twice the size for copper of the 4ga cables.