Battery tray for Standard 6 cylinder LJ

I'm looking for a battery tray for my LJ GTR. (larger than the XU1 type available)
Can someone please post some pics of a standard tray.
From the top and from the engine side if that's possible.
I'd like to see how and where they fit onto the skirt and how they are welded in place.
Does anybody know if new trays are available and what they are like?
Thanks, John.