vam1202 source

Some time ago I bought a used cd player marantz cd67 that has skipping problems.
I bought a VAM 1202 from China but the problem persists.
I read on the forum that most mechanisms are not reliable.
Comparing the old with the new mechanism i see that the sledge motor is smaller.
I saw in alibamba a mechanism that had the same big sledge motor.
Looking for one reliable mechanism because I'm confused.
Others say that the Chinese are t...h, others took from grandata and are not reliable.
Because i can not read all 2000 pages, is there someone to saggest a Seller via pm or here?