Camper Top Clamps for 2014 with Bed Liner

I searched older threads, but everyone seemed to be talking about clamping camper tops to all-metal beds. Just picked up a great deal on a matching color Leer Camper top, but my 2014 has the factory plastic liner which I dearly love. The only method I saw that might work is turnbuckles to the 4 mounting loops on the floor.

How does Toyota attach their camper tops ? Is there a special clamp available that works with the bed liner ?

Any guidance highly appreciated.

 

It's not a bedliner, it's the box.
They make a clamp that works with the side rail just below the top of the bed.

 

https://www.ebay.com/itm/Track-Moun...ra-Truck-Cap-Camper-Shell-Black-/163020589003

 

My leer shell is attached to the t-slot tracks along the top of the bed.

 

Thanks guys !