For those who are looking for barrel, little bit of google Fu yield this:
http://www.gmriflebarrel.com/uzi9mmgm-10fa-uzi-full-auto-10-5-threaded/
I've known Brent for almost ten years. He's a good guy of the highest order and he's an Uzi shooter.Try Brent from- http://shop-usbarrelshrouds-com.3dcartstores.com/ call him, he will tell you exactly what your getting. I'm not sure of his prices compared to others but he s a straight shooter- no pun intended.

If you have a rewelding jig you can get a demilled Uzi receiver for $129.99I really want to find a kit with a barrel and stubs to do a reweld