My question is: Why is E&L not making them? Because that would be a solid and close to perfect rendition imho. There were Gen 1 E&L (Meister Arms) then there were Gen 2 E&L and then a fizzle. An E&L AK12 and possibly full-auto Stechkin would be fun. www.39bullets.com
has some nice looking items for visual reference to what you're looking for. Some nice variants of the counter-sniper platform.
Side note: Anyone know where and when more GP25/30 will be made? I'm looking for one. Although the TAG 15 is cool, 10/10 on the fun meter but expensive and not entirely, visually accurate in detail with that c02 snorkel. Maybe a version with c02 peq storage and not so obvious hpa line?