I got the bed extender for 25$
Paid 40$ for the pipe & 15$ for spray bed liner.
I used 3/16 diamond plate to join the pipes together at the knobs.
A muffler shop bent the 1 1/2” tail pipe.
I used 5/16 stainless all thread with stainless knobs I made, to attach to the bed. I put 5/16 rivet nuts...