Before I go buying this set, I wanted to get a couple of guy's opinions on it. First off, it is an East german AK74 folding stock complete with grip and hand guards. Would the folding stock install onto my Romanian AK47? I hear you can fit them with some machining, but will it rattle around? Also, I'll probably keep on my wood stock, but If I decide to put on the german stuff, will an Ak74 gas tube work on a 47? Thanks!