Thank you both for the replies!
I'm mostly considering such a thing for a professional environment, so the RIDEN RD supplies can be used, but to a limited capacity... So not for anything that requires high confidence in the measurements. This would most certainly limit their use cases..
I took a look at Keysight's communication DC sources, thanks to pointing them out xmo! I now see that I forgot to mention the basic specs that I have in mind, which are 30V/10A for the power supply. So we something in the 300W+ range. The communication DC sources are still usable, albeit the tests would require longer time.