Just out of curiousity are prices for older semi-auto Model A Uzis out of reach. I owned one back in the later 70's, back then the only difference between the Model A Uzi and the real deal full-auto Uzi was the bolt. You simply opened up the receiver cover, removed the semi-auto bolt and installed the full auto bolt. Then you could remove the legal 16" barrel and install the 10" which stuck about 2" beyond the barrel nut. The only difference between the two was that the semi auto fired from the closed bolt, the full auto fired from the open bolt. Insert a mag, pull back on the bolt and it stays open until you squeeze the trigger and will keep that up until you release the trigger...there was no option for semi-auto fire with that configuration. But the truly neat thing about all that stuff was that it was not illegal to have the full auto bolt and short barrel in the same bag as the Uzi, it was only illegal to have them in the Uzi. Total time to change-out from semi to full auto was somewhere around 30 seconds if you practiced and had everything right in front of you. They discontinued production of the Model A type Uzi probably for this very reason, great little weapons, super designed folding stock, with the 16" barrel it was easy to bust milk jugs at 50yds. With the full auto bolt you could with practice and the right angle fire 33rnds off and as the last round left the barrel reach out and catch the first spent cartridge.
Back then the complete rifle with all the stuff was around 500 bills which wasn't cheap by any means, I ended up trading mine for a pickup.