742 carrier with Detroit Locker and 4.56 gears

I've got a 742 carrier rear end set up with a Detroit Locker, 4.56 gears, and the big 7290 yoke. It came in my 70 Dart Swinger 340 I purchased about a year and a half ago, and it's had very little use since I've had it.

Since I was looking to have more top end for cruising, I just recently found a 3.55 Suregrip setup that I now have swapped into my car. I no longer really have a use for the 4.56 setup, so here it is for sale.

I'm located in Forest Grove, OR. I would prefer a local sale, but may be willing to ship at the buyer's expense.

$800 OBO