Those are styled like the good ol' Carter Fabrications panels... Nice looking!
Thanks, I got the idea from the bed I saw in this fastback conversion on shapeways. Searched a bit after seeing that and wasn't able to find any other info so I went about making one.
https://www.shapeways.com/product/9GPN2XMEB/axial-wraith-fastback-conversion-for-radiator
Eventually I'll probably get that fastback setup as well. Kind resembles the lines on my big crawler.