Blazer Vs. Pickup bed patch panel diff?

[Ochre]

Alright, delving deep into the rust repair on my blazer. Bedsides came off, then the bed floor came off and is sitting on some woodworking horses in the garage, extracted all the broken off bolts and other hardware, patched some holes that either need to be re-drilled or won't be used again (I'm ditching my roll bar).

I drilled all the spotwelds for the rear cross sill and pulled it, and was about to start patching up the holes in the back floor when I realized that the bed floor patch panel I had was not aligning with the crests and valleys of my blazer's bed floor. My patch panel is from goodmark, says "67-72 Chevy C10 bed floor" on the sticker. Now I'm faced with some confusion and dilemma -
Did the pickups have different spacing on the crests/valleys of the bed floor?
Did someone maybe slap the wrong label on a bed floor patch for a newer/older truck?
If the blazers/jimmies had a different bed floor pattern, where can I get a panel to cut up & weld in to fix my damaged bed floor?