Boy did he ever get seen coming. $3300+ for Dana 44 and 12 bolt???? GEEZUS !!!
So does this deal for your include the ARB Air Compressor set up too? Being they're basically, just broke in axles with lockers and air lockers, and the 4in lift springs included, yeahhhh, it's probably a good deal for you if that's all you're interested in running is 1/2 ton axles. I'm sure he's selling because he's upgrading to 3/4-1 ton axles which is what he should have done in the first place. You just don't spend $3300 on 1/2 ton axles IMO.
Being that he's absorbing the huge loss, $1000 is probably good for you considering the Air Lockers. Some people love air lockers, some people hate them. They can become problematic and unreliable. Moreso in how they are installed as far as air line routing and your connections. And as you probably know, Dana 44 front and 12 bolt rear is only good for light to mild wheeling. If you get this set up and break axles, with the air lockers, I'd say it's probably worth replacing the broke axle if and when it happens, as it happens with chromolly axles to add a bit more strength. I'd consider going no larger than 35x12.50 tires.
But, setting strength aside, with front and rear air lockers you should be able to take your truck just about anywhere you want to go and have options in operation. You'll find that you shut that front locker off quite often. It can certainly hinder making sharp turns on tight trails. But in a mud or slick hill situation going straight, lock that bitch up and you should walk right up it or through it.
So if you're wanting to keep it with 1/2 ton axles, I say for sure go for it. The only thing I'd consider otherwise is, I've seen CUCV military axles as a set for $1400. That gives you a 14b Full Float with 4.56 and Detroit Locker in the rear, and a Dana 60 front axle also in 4.56 and sometimes those have True Trac limited slip diffs. More often than not, they're open front Dana 60, but you have the best of the best in strength with the 8 lug 1 ton axles that you could later add a limited slip or air locker to the front if you do find that you want the front locked up too.
It will include compressor, all wires and air lines for to setup. The only thing it will be missing is a set of shocks(open to budget minded suggestions) He told me hes selling because he came across a corvette project that interested him more, and was tired of chasing rust on his 78. 
