What would be a good starting price?

I have extras of the Hot Toys Terminator figures I'd like to sell, but I don't know a good starting price for them. Everything is complete and great to mint condition.

MMS117 T-800 (previous owner was a smoker) has been displayed
MMS 129 T-1000 Only removed to inspect (had to add extra wrist peg because I couldn’t remember if he was suppose to have some or not.
The Terminator T-800 Tech Nuir version (never opened)
The Terminator Battle damaged T-800 (Never opened brand new)
DX10 T-800 (only inspected never displayed)
DX13 T-800 (brown mailer has never been opened, factory sealed still)

Any suggestion?

Completed E-Bay listings is a good starter.