Looking for steel 5' tall 8' wide Tailgate

Hello.
Looking for 5' by 8' tall Quarter inch thick Or less Tailgate for my dump truck I have seen them at auctions before but I can't find one now I thought about getting 1 off a roll off dumpster but I can't find it I do have a guy who can fabricate 1 but it just takes so much time to get someone to build it so I thought finding a used 1 on a roll off might makemore sense can you buy a gimme any thoughts or suggestions. It would look something like this in a picture there has got to be one out there Have a good day thank you

 

Hello.

Sorry I thought I put that I was in Denver co.

 

Rockingham.
I appreciate that. I didn't think about those to look at. I am I'm Denver co. We have quite of few salvage yards. Thank you.

 

Flht.
I am in denver co. Thank you for your reply.