Here's my "pumpkin".
If I didn't knew, I'd say those were made in soviet union. That's the level of finishing quality. Even the fuel pump gasket, which came with tanks, wasn't fuel resistant material!
I finished fuel pump hole, fuel level sensor hole and petcock holes with sandpaper and flushed plastic chips (there was lot) out of tank and made new fuel pump gasket of viton rubber. Now, when there is not any sign of leak, I like them. They are little wider than originals, but after few hours of riding thats not a problem.
I'd say those are in top three farkles, if range of original tanks is not enough.