If rifle and ammo prices are serious limitations, how about a Norinco SKS? Ammo, fuel and food prices will get higher, maybe much higher.
After handling mine one week, the Yugo then seemed heavier than necessary and clumsy, with the grenade launcher and bayonet adding the weight out where the increased leverage is felt. It would be harder to maneuver inside a house or under tree limbs.
Those who try the even shorter Paratrooper version seem to prefer them.
With the common x39 ammo, adding a Saiga etc one day would be simple.