You can pretty much find out most information needed right here on this forum. The mods here do a very good job and keep the threads civilized without busting in on so many discussions where the nazis are criticized and acting like the gestapo on the AKFiles. Anger is that forum's middle name and information is available elsewhere. Start your own thread here regarding AK info and I'm sure you'll be pleasantly pleased with the information obtained.
Here's a nice Mitchell Arms pre-ban M70 Yugo AK bought in 1988. This AK is supposed to be one of only 400 folders that were imported prior to the 1989 ban. It's kept in Pa. where I do most of my shooting since I have family and friends there.
I was fortunate to have been able to acquire the original military scope mount that fits on the side rail. It took me one year to locate it, but I knew it would be a necessity that might not be found later on. I've never seen one of these mounts for sale since the '89 ban. The scope is an FED 1.5-4.5 Russian mfg. in 1995 found in a Ukrainian warehouse. I purchased it from Kalinka Optics. I'm extremely happy using this scope and it was a very reasonable price. The mag is a 20rd Chinese Type63 that has a bolt hold open and is the right size for bench shooting.