Going Flatbed and Need Some Setup Advise

I have a conventional tractor (T680) pulling van now with a Tripac. I think installing a rack behind the cab might involve some modifications. I see a lot of trucks pulling flats with no rack.
Where would the chains and binders be stored? I know a headache rack is no longer required by law.
I'm just trying to set myself up without incurring a time consuming modification to the tractor assuming it's at all possible. Please help me out. Thanks.

 

I ran flatbed for a short time years ago. I just don't want to run all over wasting time running into problems. So guys, if needed at least temporarily, keep all equipment in the trailer box and tarps on the deck just to keep moving?

 

Thanks all! Does anyone have the name of the source(s) for Landstar for the equipment and racks?

 

Yeah. I just learned that. Look like I'll need a rack. But that's not enough? I was told I can buy a box and mount it on the trailer, then take it when it buy a trailer?