I have the same gun/stock setup
although I bought it that way, with the addition of a scope/mount. As far as workmanship, mine at least, is of a pretty good standard, easily as good as my unissued Yugo. It's also much more accurate (although certainly not a benchrest gun!) than any AK I've shot/seen, at least with decent ammo...Some of that may come with the fact that it is much heavier than an AK. Mine works well with all different kinds of magazines, from various counties, 30 and 40 rounders, but there is a distinct technique to getting them to snap in there properly, took me a little practice, to do it quickly. It may help that mine is "well worn" as I've put about 5000 rounds through it, and who knows how many it fired before I got it. I have had exactly one malfunction (stovepipe) in all that time.
Hang on to it, as they are hard to find, and since I bought mine a few years ago, prices have gone up (but we're not talking thousands of dollars, just a couple hundred)...I would buy another, in a heartbeat, but I haven't seen another locally, or at a gunshow since I bought mine 4 or 5 years ago. I prefer the shorter M (paratrooper length), over the D, makes for a pretty handy package. Always wanted to put a folding stock on it, then it would be real compact (although maybe not as practical) but, of course, legally that's a big no-no.