This, if you can find one-
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Romanian M69. Ive read that the design is related to the CZ family, but sadly never owned a CZ.
Dirt cheap, built with typical Combloc rugged simplicity, and deadly accurate with the excellent iron sights. Mounting a scope is a little tricky, but certainly doable. Magazines are not hard to get or expensive, and the port is large enough to allow easy single loading if necessary.
My second choice would be a Savage Mk2 repeater. Very similair to the Romanian in operation, just not quite as overbuilt. Usually needs to have sling swivels added. Much easier to mount a scope to, however.