$900 and you're getting into Bulgarian Arsenal with factory side folder (and all the bells and whistles) territory.
Yugos have too many proprietary parts. They're the oddball of the AK family. Wouldn't be my choice unless I just needed to round off the AK collection for some reason.
Can't believe no one has suggested this yet but get yourself a Vepr they are right in your price range right now (all calibers available, 5.45, 5.56, 6.5Grendal, 7.62x39, .308, 54r ). There is no better built higher quality AK on the market right now at the price range. Sure they come in as sporters like Saigas did but it doesn't take much to turn them around and the starting point is leaps and bounds ahead of a Saiga.
Edit; Sucky part about the Vepr is the slant cut receiver.
Edited by Mullet Man, 09 July 2016 - 02:07 PM.