Coolant leak question Renegade conversion Options

[HalfMoon]

So, I've discovered a little coolant leak in my older Renegade SB conversion.
It's coming from the upper driverside engine coolant outlet (pictured). Quite difficult to access. Hard to know if it's the hose clamp (adjustment tightening un-accessable until and unless some things are gotten out of the way) or the black housing that the hose attaches to, or the aluminum housing that bolts to the block.
Probably the only way to know what the heck is going on is to access and remove.
Here's the question. Of you Renegade conversion owners or those who have direct experience working on one, is it better to remove the drivers side valve cover to access this housing or come from below removing the auxiliary water pump to access the area?
Sidebar question. Is the black spigot that the hose is attached to supposed to "swivel" a bit or is it in fact LOOSE? I see that some of the other spigots (elsewhere) do swivel slightly and some don't (none of them that swivel or not are leaking).
So....I wonder if I'll access from on high or from below.