I have RH Solar Tactical paddles for my PTR91 (HK clone), my AR15 retro build, and have had them on prior AK builds and a VZ58 I had. On the AR, if it is a build with a carbine stock, I prefer the Hammerhead (which I also have) as it allows a one hand, secure grip, that feels sorta like an FN P90 PDW grip. On my retro rifle, I use the paddle.
Anyway, since the Saiga comes featureless, it seems silly to me to restore it, only to have to install a paddle to use my pre 1-1-2000 high-caps.. Sort of like taking a perfectly good M1 Carbine, M1A, or Ruger Mini, and putting a pistol grip on it, only to have to use a paddle.
Besides, my favorite long gun IS the USGI M1 carbine. Light, handy, and very deadly at PDW ranges (150ish or less). I took 200 pound deer at 100 yards with one 110 grain JSP Carbine round (1970 FPS @950 lbs ME). Carried it for years as my LEO trunk weapon, and my dad carried one on Iwo Jima and it served him VERY well.