nah
The SVD or Duraganov is not a big AK. I am far from an expert on the matter, but I am fairly certain that the trigger group and the action/gas system are far different from the AK, and the entire system was intended for accuracy. There is a passing cosmetic similarity, but that is all.
What complicates the issue is that the PSL/Romak-3/ssg-97, now readily available, is frequently marketed as a "Duraganov" is indeed no more than a big AK. And the PSL bears an even greater resemblance to the SVD. But, mags will not interchange, mag well placement is different, the forearm and butt stocks are different and again the trigger group/action-gas system is vastly different. The PSL and the SVD do share the same cartridge, the 7.62x54R.
We should hear more from others. The big AK sites address these issues pretty clearly.