ConnectX-8 Mechanical 3D Model

Hello,

I am trying to develop a mechanical fixture that will support ConnectX-8 Card and make sure I can integrate to my system in a mechanically stable way. Is there any way I can access to a rough 3D .stp model of ConnectX-8 Card to design my system accordingly?

Thank you,

Any tips where can I request this info is also appreciated for any other video cards.

Thank you,