1969- 1972 Speed Warning Dash Cluster

[Todd68Chevy]

I just bought this 1969-1972 dash cluster at an auction and really do not know much about it or what to look for. Here is the information I know and please let me know what I need to check or do. The bezel is not great but I have not found any cracks yet. The speed warning knob is broken but if you move the cable the needle moves. The temp. gauge needle is missing (not visable). The speed warning cable pulls right out of the back of the cluster but when reinstalled the needle moves. The part zip tied on , I assume is the buzzer and the 2 wires on it but does it need more? When the cluster is tilted there is something loose on the speedometer end, might be the temp. gauge needle.

I would like to know what this is worth and is there anything I should check before selling that would help the value or keep the buy from regretting buying this part because I did not tell them something? Thanks for any help.