Tail light harness, fire wall to rear NEEDED

[SWINGSAX68]

I was wondering if anyone has got one they can get rid of like real cheap. I have like sparse parts to trade, ask see if I got it.
I just need the front to rear wireing harness for a 68 short bed, heck even one from a long bed would work too, it would give more slack to reroute so I don't get shorts again!!!....or it could be too much slack for more problems.....either way.
A used one with no bad kinks and no exposed wires I could settle for, but really looking for new, or close to. ALSO up to what years will harnesses work out of???? Cause my dad has a 78 1 ton sitting in the front yard.
thanks guys....
My truck is gonna sit until I get this part. Nobody wants my truck to sit do they???? well....it might have to sit till next week anyways....i'll be out of town this weekend.