Here in the states, 0-15, 40A, < $160, single supply, fit in a case? Not without digging around.
Here are some representative supplies easily found here

These are store prices in US $, at HAM swap meets you can usually get em for 10-15% less, more if you're patient (got one PS at a %50 discount one time because the guy said it put too much noise on his HF rig and he thought it was a worthless noisy supply

). All the below have voltage and current meters, all brand new, operation out of the box unmodded.
5-15V 30A, $139 Alinco DM-330MVT ( my personal fave, you can get it
here, search the radio/power supply area) and
here is a nice picture of this baby )
9-15V 40A, $180 MFJ MFJ-4245MV
You can get Pyramid units even cheaper, but their
out of the box 12-15V ranged and don't use the same quality of parts as Alinco and MFJ units.
Pyarmid PS52KX runs in the $160 range and is 46A, PS46KX runs in the $140 range and is 40A, PS36KX in the $120 range and is 31A (all constant rated power).
The unit on your link isn't sold in the states (at least not under those brand names). That being said, the comment was NOT anything against your article, in fact it was quite good
It was simply a point of info for people. I've been using HAM swap meets for years to get inexpensive high current supplies for electronic projects. It's an area a lot of computer hobbyists don't think about as a resource for them. And if you don't care for the voltage/amp meters on them, there are quite a few models that can be had for $30 to $40 less (never understood why they charge so much for meters on them).