Not a Dolium tray, but along the same lines. I picked this up through ebay last week, apparently it was custom made by a fabricator who works for the guy I bought it from. It's all aluminium and very solid; the slats are 12mm x 65mm and are welded all the way around at each end.
It's just bolted to the ROLA racks that I use for my Thule roof pod (using the pod brackets, although it came with custom steel brackets), but it will either end up on my Rhino heavy duty cross-bars, or on a bespoke mounting system - which is the most likely, because I want to have it as close to the roof as possible. The pics don't show it, but there's two 50x50mm angle brackets welded across the slats at each of the two places where the ROLA racks are, so plenty of additional strength there.
I also have a Chinese ARB copy full length steel rack but that's exactly what motivated the search for a basket like this - just too hard to manage given that I like to switch rooftop storage systems to suit whatever I'm doing at the time. The big rack has its place, though, so I am not selling it just yet.
This tray weighs nothing! When I picked it up, the seller's 14 year old son got it from the garage and walked it to my car with no effort at all.
