I don't know anything about Vector, but had the IMI version, YEARS ago. Sometimes wish I hadn't sold it.
I like the fixed, wooden stock, much better than the folding stock. Much more comfortable. You can also convert the .45 to 9mm, with a bolt/barrel/mag swap.
Lots of fun, since there is so little recoil and they are completely reliable. (The Israeli/IMI version, anyway.)
If you end up getting it and need mags or mag pouches, let me know. I still have a BUNCH of UZI mags left over - 9mm and .45, as well as mag pouches and mag loaders. I'm planning to sell all of it. All are either NEW/UNUSED or in EXCELLENT condition.
Best of luck with it.