BBurns wrote:
I think that you have a very old version.
To clarify, the legs are the 3030. Attached to the top of them is a head of which you did not give a model number.
Your photos show a hole in the mounting pad leaving me to believe that the screw that should be coming through the hole is missing.
If you, in fact, have that, then you can mount any QR plate system you choose onto it.
You also have the option to remove the old existing head and replace it with one of your choice.