I see them at shows / swaps around 10 -15 each if nice, check ebay sold items too, but then you gotta pay ebay to sell there. The shifter surround with good numbers probably takes the most beating, but people tend to break corners off the stereo surround too from over tightening. Hard to say but those may be worth the most.
I don't have a complete set. I have paid different amounts for what I have and was looking to see what some other parts might cost. The shift cover plate is one. The aux gauges are another.