Cheap is a relative thing, but if the OP is considering '60s to '80s era .22 rifles, the Marlin 66 ought to be right up at the top of the list. There are scads of them out there and with a little looking, you should be able to find one in great shape for under $150.
And how about a Ruger 10/22? They're kind of the epitome of that era's .22 rifles, I think. Both are about as simple as a semi-auto rifle can be, parts are plentiful and they're easy to find.
Well we don't rent pigs and I figure it's better to say it right out front because a man that does like to rent pigs is... he's hard to stop - Gus McCrae