If you were going to have it rebarreled, would it be better to have an original Romanian barrel installed or a new manufacture American barrel? A surplus Romanian barrel might have the same problem the original barrel had. I have a WASR that has an original Romanian barrel, and those parts kits they import to make those rifles had who knows how many rounds through them. It might be better to put a brand new barrel on it. And if it's American-made, then it will be much more likely that the threads will be concentric to the bore, so if you decide to shoot it suppressed later it will work with a suppressor mounted. I tried shooting my WASR with a suppressor, but the threads are not concentric so the bullet just barely touches the baffles on my suppressor, which throws them all over the place. If it had an American barrel it wouldn't be a problem.
An American-made barrel may be more accurate. I haven't shot an American-made barrel in an AK though, so I can't speak with experience on that. But I have shot new production Russian and Bulgarian AKs that were made within the last ten years, and they were a lot more accurate than my old WASR which was made in 1983. The WASR shoots 7" groups at 100 yards and may have a worn out barrel. One of the Bulgarian AKs I owned shot 4" groups at 100. The Russian one did the same. I was also able to hit a steel gong at 600 yards with the Bulgarian one, but could never do that with the WASR. I believe the newer barrel is the reason. I know that a new barrel can make a big difference. I have a competition AR15 that has a 20" heavy barrel. The barrel itself cost $300. With that barrel, the AR is getting groups about half the size of my budget AR. Maybe you can preserve your AK and keep it alive, since it has sentimental value, but also have it be an accurate rifle too.