If you really want a folding stock, see if you can find a Romanian sidefolder somewhere for a decent price. The cheek weld isn't the greatest, but they are rugged as hell and work fairly well. Because of the thicker metal on the ChiCom receiver, some filing has to be done on the fitting tabs on the folding mechanism, but it doesn't take long at all.
I have a MAK90 that I bought from a gun shop not long after they came out. It was covered with fine rust, as if someone handled it and they put it away without wiping it down. At the time, I was a good customer, so they sold me the MAK for $150 so they wouldn't have to clean it. It cleaned up well and I just lived with the thumbhole stock till the Assault Weapons Ban expired. I never did shoot it a lot, but it was always reliable and accurate.
Not long before the AWB expired, when I was sure it would, actually, expire and not be reintroduced, I ordered the necessary parts to de-ban it. US trigger group, US gas piston, US wood pistol grip. I also ordered a Romy sidefolder stock and "dong" forearm. I spent a week stripping, bleaching, staining and shellacing the wood parts so that they matched well. The day the AWB expired, I got home from work and stayed up WAY too long de-banning it and installing the Romy sidefolder and handguards. It turned out very well and I really like it. I still don't shoot it much, but it works VERY well and was my "travel gun" for a while because the sidefolder let it fit in some reasonably compact spaces in the car. The wood turned out very nice and the rifle looks fantastic. Above all, no permanent mods to the rifle and it can be returned to the original specs if needed, if I could find the original stock anyway.
Because we all like pics, here is one. It has a cheap nylon sling with a dog snap on the front because I don't shoot it much and haven't gotten around to putting a nicer one on it.