I have a set of the Bonesteel rails. I like them very much. Attaching a railed handguard is the easiest way to mount an optic. The Bonesteel sits the lowest on the market. So that helps if you want to run co-witness. Some sights (like the Bushnell TRS-25 or some Aimpoints) will co-witness. Two other ways to mount optics would an aftermarket dustcover. Don't see those vary often and they may not fit on a 2008. They may not hold zero well either. The second most used option would be to attached a side rail and use an optic mount. Since you're using a 2008. The receiver or the rail would need to be modified to fit.
I like the folding stock. But it may not be ideal. You could get the fixed beaver barf stock. Or buy and adapter (will need to be modified some to fit a 2008) and throw on a buffer tube and use any various AR type stocks for best shooting comfortability.
Are you looking for a muzzle brake or a flash suppressor. There are many options. The original Czech military muzzle brake is pretty common and popular. Prices go from $25to infinity in price depending on what you want
http://bonesteelarms.com/VZ-58-Slovakian-Style-Muzzle-Brake-CNC-23263.htm OOS, but it gives you an idea.