throttle and kickdown linkage

My Barracuda is headed to the engine builder this week. I'm looking for throttle and kickdown linkage for a 340/727 combo. I need everything from the carb to the tranny. I've checked out Herb's, Year One, ebay, and others. I've seen prices anywhere from $12.50 to $350.00. It doesn't have to be NOS for me. This isn't the correct engine for my car, so it doesn't matter.