Do you think either of these PSU's can run 3 bitfury boards and 1 coincraft 260 board?
XION AXP-1000K14XE 1000 Watt 80+ Bronze Module ATX
(6 + 12v rails)
Apevia ATX-WA900W Warlock 900-Watt Power Supply
(4 + 12v rails)
You need 36A/432W for Hex8A1-260 (I got one runs at 368W, and one runs at 408W, so they can vary in power requirements a lot!)
and 19A/228W for 3xHex16B (about 75W each)
= Total around 55A/660W
Apevia ATX-WA900W Warlock 900-Watt Power Supply = 4x 25A rails, 58A/696W max on 12V, maybe cutting it a bit close.
XION AXP-1000K14XE 1000 Watt 80+ Bronze Module ATX = 2x 20A and 4x 30A rails, 75A/900W max on 12V, this is the best of the two.
To avoid disappointment I would use a single 12V rail 62A/750W+ brand name PSU. (Corsair, EVGA, XFX, Seasonic, etc.)
Cheap unknown brands with many rails have a habit of blowing up!