No I did not. Bad timing for the project, at that time.
I have no use for distilled water, except for maybe a quart a year.
The CU tube cost more than I spent (in my whole life) for distilled water.
And my monetary situation (incredibly overly simplified) changed about 5 days before those pics were taken/dated.
My concept of the problems that design was intened to overcome are not present in a design that does not heat and condense water.
Meaning: It will heat beans just fine.
If the beans are in cans, open the cans. (read that twice)
It would be best to make a platform(?) up as high as possible to hold the bean container.
It is completely possible (and most probably highly probable) that the foam cooler material will melt in reasonable solar conditions.
IIRC, the leaking prototype box (not show), in low sun and high winds, hit 190F in a few minutes.
On a good note, your vet gets a lot of those coolers in both sizes shown, and throws them in the trash.
Cheap blue fiberglass furnace filter are cheap, and flat black spray paint is cheap.
With well timed trips, etc, could make one for $5?
If it fails, or melts, or whatever, you gained more than $5 worth of experience.
G-
(PS- I fixed the quote issue above)