If its not urgent, you might check flea markets and estate sales.
There have been a lot of great vises made over the years, and most of them are still out there.
And some of that old iron is tough. In most cases much heavier and more rugged than what is being made today.
My cousin, baitfish2, brought a large old vise over to my farm a couple of years back.
He said that when he was little he and his father went to an estate sale and bought it for $5.
Said his father was delighted to get such a big vise for that money.
It moved with his father over the years, and later with him after his father died.
His new house's workshop did not have a bench big enough for that vise, so he figured he would put in on mine.
My cousin said that the reason it was so cheap, was because the handle only worked one way.
You could tighten the jaws up strong enough to hold anything, but when you reversed the handle to open them, the screw just slid out the front of the vise.
It was not a big problem, you just grabbed the jaw and pulled it out to where you wanted it......
I stared at him for a few minutes. He is something of a practical joker, and I figured he thought I was stupid enough to fall for that one.
When I realized he was serious, I came really close to not saying anything. But I knew I was going to be using it too, so...........
I flipped the vise over, found the big "E" clip embedded in some old grease where it had popped off.
Straightened it, squeezed it a little more shut, and snapped it on the screw just inside the jaw.
Since I had some vise-grips in my pocket, it took all of about 45 seconds.
Then the jaw moved in and out with the screw just fine.
I looked over at my cousin. He was just staring. Finally, he said that he and his father had been pulling that jaw out for almost 50 years........
I felt so bad for him, I didn't even say.....Dumb*ss, like I normally would have.....
bought the biggest one they had. Removed the swivel bottom and tossed it. Bolted the top section down to the bench. Beat the crap out of that thing for 6 years while looking for a good old one. Never found one. It is still on the bench. No issues. 
