Lower Rear Short Bed Patch Panels Help!!?

[K10Dream69]

So I ordered these Lower Rear Panels from LMC, driver and passenger side (Part #'s 38-7274 / 38-7275) and they're not even close to a match.
First off you can only buy them in Longbed and have to be cut down (I anticipated this)
So I get them in and the body lines don't match up, it doesn't have the bevel line down like the factory edge of the bed does.
The panel goes well above the taillight location and also doesn't have the mount for the support brace under the bed.

So my question/hopes is someone could point me in the direction of an ACTUAL replacement that will work.
I see Brother's makes a nice one but was hoping for advice before I throw away more $ on a part that won't work.

To make things worse, after I pay shipping, + restocking fee I would get back $10 if I was lucky, so I'm stuck with junk panels.

On a positive note, so this isn't a Rant! I replaced the passenger rocker from LMC as well, and it fit great

Link to LMC diagram, #5 on the list:
http://www.lmctruck.com/icatalog/cb/full.aspx?Page=27

Panel on actual bed, as you can see lots of bondo here: