Well the RS Pro PSUs arrived, with the UPS driver having a brain fart and having to come back a few hours later with the second one, I suppose it was buried under other parcels in his van.
The undercover Siglent is clearly used, though in good condition overall. Annoyingly it seems RS have asked Siglent to alter the firmware enough that you can't use Siglent update/upgrades. Other than that it works well with decent accuracy on the meters etc.
The Iso-Tech/Gw Instek clone or whatever it is, is new by the looks of it, with some minor pin-dents in the sides of the case. The display protector is still on. This is the one that the UPS driver had to come back for, so I've not had time to get to know it much, but I will say the controls are not intuitive and somewhat finicky, and the current accuracy is bad, with a 10mA offset meaning it's under-reading by that amount more or less the whole range. That may or may not be fixable, I'll have to RTFM first.