Snowboard rack on the bed?

I bought the Yakima rail system with control towers to mount my ski box. Just mounted the rails on the bed rails and then you can move em around or take them off whenever (the rail just stays with the bases). There is a thread on here somewhere in the Gen2 forum describing the install of the rails. Pretty straight forward.

 

I have a 2002 tacoma extended cab. I am trying to install a snowboard rack in the bed and am not sure what kind of truck bed stay attachment I need. I have a bed liner that comes over the edge of the bed so I cannot see what kind of attachment I need. Does anyone have any idea what kind of truck bed stay I would need? Much thanks for any help.