Vector does a good build and nodak recievers are amongst the best. Go for it!
ETA: Might want to make sure it comes with the orignal chrome lined barrel. I'd be surprised if it didn't, but might want to check just to be sure.
Also, I wouldn't expect more than about 6" at 100 yards. It will probably shoot better than that, but it is an AK and it's not that they're flat-out not accurate, they're not
consistantly accurate. Some are 2.5 MOA guns, some are 8 MOA guns. I'd say most are 3-4 MOA, with most '74s closer to 2.5-5 MOA. The RPK has a heavier barrel (and on the RPK-
74 a smaller hole through the middle
), but the rigidity gained with the fatter barrel may be lost due to added barrel length. Then again it may not. I guess all I'm saying is don't expect it to be all that much more accurate than a standard AK-74.