hi aggie jon,
i'm also interested in these cables, i'm likely to need a few as well, so far the best i found online is from
1947-1952 Park Brake Cable 1 Ton Rear 64" Long Chevrolet and GMC Pickup Truck
Item Number: MEB491
Retail: $65.00 EACH
i haven't ordered any yet to see if there are worth it or even correct.
i'm gonna try to salvage my old ones first, see if i can strip them down, maybe find some stainless cable to thread into them, drill out and weld the old cable end onto the new cable.
lets hope something comes up online