The brake works well, and the stock may look bad, but that's because it's on a milled receiver.
I'm not sure what it would take to have the brake removed, but I take it that there is no threaded front sight base on that rifle for an AK-74 brake. You'd have to use an adaptor, and it would end up looking like a$$ (just a guess about the front sight base or lack there of).
If you're hell bent on putting on an AK-74 type brake, call up AK-USA and tell him you want an "accurate" depiction of an AK-103. He'll weld all the holes, do the white painting of the Izmash markings, throw on a 800 meter 7.62x39 mm sight, etc. The only things wrong with the damn Saiga conversion is the lack of dimples stamped near the mag well (you won't have any wobble with your magazines though, I guarantee you that) and the strange receiver angle on the rear (Saiga spec vs. military AK-103 spec...who knows why they made the addition cuts).
Here:
www.ak-103.comOh, and the brake isn't chrome lined, but other than that, it's an exact copy of the Bulgarian brakes. Overall, it's a damn good rifle if you want a stamped receiver.
Still though, I'd still look at that SAM-7S if you can get your hands on one. It's a damn good rifle. Who cares about the funky looking brake. It works fine and it's not a noise maker like most American copies.