Thread: Help me pick a power supply
Will 10 A do?
https://www.modulargrid.net/e/trogotronic-m-15
Trogotronic has this for around $200, with three busboards, brick, cabling, and a 4 hp inlet. These can be modified in various ways, so what I would suggest is getting in touch with them directly and seeing what a "zero busboard" version of this would run you.
And yes, it's wise to have at least a 1/4th of your current in reserve for typical "startup inrush" issues...but with something like this, you could slam a few smallish cabs together on the one P/S. Plus, if 10A doesn't cut it, this can be scaled up to FORTY AMPS if necessary!