http://tantal.kalashnikov.guns.ru/optics1.html
Sorry, I think all of these are over $150, but maybe you'll change your mind after seeing them. These optics were intended for AK/AKM and perhaps are more for collector's, but they'll work, if you find one you like.
Will you be using the traditional scope mount on the left side of receiver, or do you have some aftermarket mount, like on the forend, or the receiver cover?